An Ornithopod-Dominated Tracksite from the Lower Cretaceous Jiaguan Formation (Barremian–Albian) of Qijiang, South-Central China: New Discoveries, Ichnotaxonomy, Preservation and Palaeoecology
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{"title"=>"An ornithopod-dominated tracksite from the lower Cretaceous Jiaguan Formation (Barremian-Albian) of Qijiang, South-Central China: New discoveries, ichnotaxonomy, preservation and palaeoecology", "type"=>"journal", "authors"=>[{"first_name"=>"Lida", "last_name"=>"Xing", "scopus_author_id"=>"37017800400"}, {"first_name"=>"Martin G.", "last_name"=>"Lockley", "scopus_author_id"=>"7006693874"}, {"first_name"=>"Daniel", "last_name"=>"Marty", "scopus_author_id"=>"7004358133"}, {"first_name"=>"Jianping", "last_name"=>"Zhang", "scopus_author_id"=>"49161339900"}, {"first_name"=>"Yan", "last_name"=>"Wang", "scopus_author_id"=>"56997592000"}, {"first_name"=>"Hendrik", "last_name"=>"Klein", "scopus_author_id"=>"35264207100"}, {"first_name"=>"Richard T.", "last_name"=>"McCrea", "scopus_author_id"=>"7004285839"}, {"first_name"=>"Lisa G.", "last_name"=>"Buckley", "scopus_author_id"=>"15029907500"}, {"first_name"=>"Matteo", "last_name"=>"Belvedere", "scopus_author_id"=>"35321010400"}, {"first_name"=>"Octávio", "last_name"=>"Mateus", "scopus_author_id"=>"6507239807"}, {"first_name"=>"Gerard D.", "last_name"=>"Gierliński", "scopus_author_id"=>"56014623400"}, {"first_name"=>"Laura", "last_name"=>"Piñuela", "scopus_author_id"=>"10043973800"}, {"first_name"=>"W. Scott", "last_name"=>"Persons", "scopus_author_id"=>"36675513400"}, {"first_name"=>"Fengping", "last_name"=>"Wang", "scopus_author_id"=>"56139993500"}, {"first_name"=>"Hao", "last_name"=>"Ran", "scopus_author_id"=>"55646128900"}, {"first_name"=>"Hui", "last_name"=>"Dai", "scopus_author_id"=>"56391905000"}, {"first_name"=>"Xianming", "last_name"=>"Xie", "scopus_author_id"=>"56704003700"}], "year"=>2015, "source"=>"PLoS ONE", "identifiers"=>{"issn"=>"19326203", "sgr"=>"84949503971", "doi"=>"10.1371/journal.pone.0141059", "scopus"=>"2-s2.0-84949503971", "pui"=>"607159152"}, "id"=>"146192ff-d202-39a1-9426-7cbb30e6d1a1", "abstract"=>"The historically-famous Lotus Fortress site, a deep 1.5–3.0-meter-high, 200-meter-long horizonal notch high up in near-vertical sandstone cliffs comprising the Cretaceous Jiaguan Formation, has been known since the 13th Century as an impregnable defensive position. The site is also extraordinary for having multiple tetrapod track-bearing levels, of which the lower two form the floor of part of the notch, and yield very well preserved asseamblages of ornithopod, bird (avian theropod) and pterosaur tracks. Trackway counts indicate that ornithopods dominate (69%) accounting for at least 165 trackmakers, followed by bird (18%), sauropod (10%), and pterosaur (3%). Previous studies designated Lotus Fortress as the type locality of Caririchnium lotus and Wupus agilis both of which are recognized here as valid ichnotaxa. On the basis of multiple parallel trackways both are interpreted as representing the trackways of gregarious species. C. lotus is redescribed here in detail and interpreted to indicate two age cohorts representing subadults that were sometimes bipedal and larger quadrupedal adults. Two other previously described dinosaurian ichnospecies, are here reinterpreted as underprints and considered nomina dubia. Like a growing number of significant tetrapod tracksites in China the Lotus Fortress site reveals new information about the composition of tetrapod faunas from formations in which the skeletal record is sparse. In particular, the site shows the relatively high abundance of Caririchium in a region where saurischian ichnofaunas are often dominant. It is also the only site known to have yielded Wupus agilis. In combination with information from other tracksites from the Jiaguan formation and other Cretaceous formations in the region, the track record is proving increasingly impotant as a major source of information on the vertebrate faunas of the region. The Lotus Fortress site has been developed as a spectacular, geologically-, paleontologicallyand a culturally-significant destination within Qijiang National Geological Park.", "link"=>"http://www.mendeley.com/research/ornithopoddominated-tracksite-lower-cretaceous-jiaguan-formation-barremianalbian-qijiang-southcentra", "reader_count"=>9, "reader_count_by_academic_status"=>{"Professor > Associate Professor"=>1, "Researcher"=>5, "Student > Ph. D. Student"=>1, "Lecturer > Senior Lecturer"=>1, "Professor"=>1}, "reader_count_by_user_role"=>{"Professor > Associate Professor"=>1, "Researcher"=>5, "Student > Ph. D. Student"=>1, "Lecturer > Senior Lecturer"=>1, "Professor"=>1}, "reader_count_by_subject_area"=>{"Unspecified"=>1, "Agricultural and Biological Sciences"=>1, "Earth and Planetary Sciences"=>7}, "reader_count_by_subdiscipline"=>{"Earth and Planetary Sciences"=>{"Earth and Planetary Sciences"=>7}, "Agricultural and Biological Sciences"=>{"Agricultural and Biological Sciences"=>1}, "Unspecified"=>{"Unspecified"=>1}}, "reader_count_by_country"=>{"Japan"=>1, "Italy"=>1}, "group_count"=>0}

Scopus | Further Information

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Figshare

  • {"files"=>["https://ndownloader.figshare.com/files/2369564"], "description"=>"<p>These extramorphological variants of <i>C</i>. <i>lotus</i> formed the basis for two ichnospecies, which we reject here as <i>nomina dubia</i>. See text for details.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583034, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g012", "stats"=>{"downloads"=>0, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Photographs_and_interpretative_outline_drawings_of_ornithopod_tracks_and_undertracks_from_the_Lotus_tracksite_/1583034", "title"=>"Photographs and interpretative outline drawings of ornithopod tracks and undertracks from the Lotus tracksite.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369577"], "description"=>"<p>Summary of size (cm) and mesaxony data for <i>Caririchnium lotus</i> from the Lotus tracksite, Qijiang, Chongqing Municipality, China.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583047, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.t004", "stats"=>{"downloads"=>1, "page_views"=>25, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_of_size_cm_and_mesaxony_data_for_Caririchnium_lotus_from_the_Lotus_tracksite_Qijiang_Chongqing_Municipality_China_/1583047", "title"=>"Summary of size (cm) and mesaxony data for <i>Caririchnium lotus</i> from the Lotus tracksite, Qijiang, Chongqing Municipality, China.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369539"], "description"=>"<p>Illustration by Zhongda Chuang.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583014, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g001", "stats"=>{"downloads"=>0, "page_views"=>3, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Photograph_A_and_proposed_future_reconstruction_B_of_the_Lotus_tracksite_China_/1583014", "title"=>"Photograph (A) and proposed future reconstruction (B) of the Lotus tracksite, China.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369554"], "description"=>"<p>Photographs, interpretative outline drawings and 3D height maps (warm colours are high, cooler colours are low) of well-preserved ornithopod tracks from the Lotus tracksite.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583024, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g006", "stats"=>{"downloads"=>0, "page_views"=>3, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Photographs_interpretative_outline_drawings_and_3D_height_maps_warm_colours_are_high_cooler_colours_are_low_of_well_preserved_ornithopod_tracks_from_the_Lotus_tracksite_/1583024", "title"=>"Photographs, interpretative outline drawings and 3D height maps (warm colours are high, cooler colours are low) of well-preserved ornithopod tracks from the Lotus tracksite.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369559"], "description"=>"<p>A, <i>Carirchnium magnificum</i> [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref032\" target=\"_blank\">32</a>]; B, <i>Caririchnium leonardii</i> [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref033\" target=\"_blank\">33</a>]; C, <i>Caririchnium protohadrosaurichnos</i> [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref046\" target=\"_blank\">46</a>]; D, <i>Caririchnium lotus</i> [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref002\" target=\"_blank\">2</a>], and E, <i>Caririchnium kyoungsookimi</i> [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref047\" target=\"_blank\">47</a>].</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583030, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g010", "stats"=>{"downloads"=>0, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Interpretative_outline_drawings_of_Caririchnium_drawn_to_the_same_scale_modified_after_Lockley_et_al_31_/1583030", "title"=>"Interpretative outline drawings of <i>Caririchnium</i> drawn to the same scale (modified after Lockley et al.[31]).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369556"], "description"=>"<p>Interpretative outline drawings of small-sized ornithopod trackways from QII, Lotus tracksite, Qijiang, China.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583027, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g007", "stats"=>{"downloads"=>0, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Interpretative_outline_drawings_of_small_sized_ornithopod_trackways_from_QII_Lotus_tracksite_Qijiang_China_/1583027", "title"=>"Interpretative outline drawings of small-sized ornithopod trackways from QII, Lotus tracksite, Qijiang, China.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369570"], "description"=>"<p>Photograph (C, D, E and G) of sauropod casts from QVI. Close-up photographs (F, H) show details with striation marks. Dotted line indicates outline of undertracks. Arrow indicates moving direction of tracks.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583040, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g015", "stats"=>{"downloads"=>0, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Interpretative_outline_drawings_of_sauropod_trackway_A_and_isolated_pes_manus_prints_B_from_QI_/1583040", "title"=>"Interpretative outline drawings of sauropod trackway (A) and isolated pes-manus prints (B) from QI.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369576"], "description"=>"<p>(n = 140).</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583046, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.t003", "stats"=>{"downloads"=>0, "page_views"=>3, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Summary_of_size_data_for_Caririchnium_lotus_from_theLotus_tracksite_Qijiang_Chongqing_Municipality_China_/1583046", "title"=>"Summary of size data for <i>Caririchnium lotus</i> from theLotus tracksite, Qijiang, Chongqing Municipality, China.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369566"], "description"=>"<p>Photograph (A), 3D height maps (B–D) and interpretative outline drawing (E) of complexly overprinted ornithopod track series QIII-OI1–9 from the Lotus tracksite.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583036, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g013", "stats"=>{"downloads"=>1, "page_views"=>16, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Photograph_A_3D_height_maps_B_8211_D_and_interpretative_outline_drawing_E_of_complexly_overprinted_ornithopod_track_series_QIII_OI1_8211_9_from_the_Lotus_tracksite_/1583036", "title"=>"Photograph (A), 3D height maps (B–D) and interpretative outline drawing (E) of complexly overprinted ornithopod track series QIII-OI1–9 from the Lotus tracksite.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369579"], "description"=>"<p>Abbreviations: L: Maximum length; W: Maximum; R: Rotation; PL: Pace length; SL: Stride length; PA: Pace angulation; WAP: Width of the angulation pattern of the pes (calculated value); L/W, and WAP/P'L are dimensionless.</p><p>Measurements (in cm) of the sauropod tracks from Lotus tracksite, Chongqing Municipality, China.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583049, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.t006", "stats"=>{"downloads"=>0, "page_views"=>3, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Measurements_in_cm_of_the_sauropod_tracks_from_Lotus_tracksite_Chongqing_Municipality_China_/1583049", "title"=>"Measurements (in cm) of the sauropod tracks from Lotus tracksite, Chongqing Municipality, China.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369541"], "description"=>"<p>Map of track-bearing levels at QI and II of the Lotus tracksite.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583016, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g003", "stats"=>{"downloads"=>0, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Map_of_track_bearing_levels_at_QI_and_II_of_the_Lotus_tracksite_/1583016", "title"=>"Map of track-bearing levels at QI and II of the Lotus tracksite.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369558"], "description"=>"<p>Scatter diagram of track length and width (A); length and mesaxony (B) in <i>Caririchnium</i> tracks from the Lotus tracksite.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583029, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g009", "stats"=>{"downloads"=>0, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Scatter_diagram_of_track_length_and_width_A_length_and_mesaxony_B_in_Caririchnium_tracks_from_the_Lotus_tracksite_/1583029", "title"=>"Scatter diagram of track length and width (A); length and mesaxony (B) in <i>Caririchnium</i> tracks from the Lotus tracksite.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369572"], "description"=>"<p>Photograph (A and C) and interpretative outline drawings (B and D) of possible theropod tracks from the Lotus tracksite.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583042, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g017", "stats"=>{"downloads"=>0, "page_views"=>3, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Photograph_A_and_C_and_interpretative_outline_drawings_B_and_D_of_possible_theropod_tracks_from_the_Lotus_tracksite_/1583042", "title"=>"Photograph (A and C) and interpretative outline drawings (B and D) of possible theropod tracks from the Lotus tracksite.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369548"], "description"=>"<p>Holotype shown in box of trackway QII-O20.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583019, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g005", "stats"=>{"downloads"=>0, "page_views"=>15, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Interpretative_outline_drawing_of_large_sized_ornithopod_trackways_from_QII_Lotus_tracksite_Qijiang_China_/1583019", "title"=>"Interpretative outline drawing of large-sized ornithopod trackways from QII, Lotus tracksite, Qijiang, China.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369562"], "description"=>"<p>A, <i>Caririchnium</i> isp. from Jiufotang Formation, Luanping tracksite, Hebei Province [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref055\" target=\"_blank\">55</a>–<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref056\" target=\"_blank\">56</a>]; B, <i>Caririchnium</i> type from Tongfosi Formation, Tongfosi tracksite, Jilin Province [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref057\" target=\"_blank\">57</a>]; C, <i>Caririchnium</i> from Hekou group, Yanguoxia tracksite No. II, Gansu Province; D, <i>Caririchnium</i> type from Hekou group, Yanguoxia tracksite No. I [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref058\" target=\"_blank\">58</a>]; E, <i>Caririchnium</i> from Hekou group, SS1 site, Gansu Province [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref059\" target=\"_blank\">59</a>]; F, <i>Caririchnium</i> from Jiaguan Formation, Longjing tracksite, Sichuan Province [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref076\" target=\"_blank\">76</a>]; G and H, <i>Caririchnium</i> from Feitianshan Formation, Zhaojue tracksites, Sichuan Province [<a href=\"http://www.plosone.org/article/info:doi/10.1371/journal.pone.0141059#pone.0141059.ref008\" target=\"_blank\">8</a>]; I and J, this text. Scale bar = 10 cm.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583032, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g011", "stats"=>{"downloads"=>0, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Interpretative_outline_drawings_of_Early_Cretaceous_Caririchnium_tracks_from_China_/1583032", "title"=>"Interpretative outline drawings of Early Cretaceous <i>Caririchnium</i> tracks from China.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369575"], "description"=>"<p>Measurements (in cm) of isolated ornithopod tracks from the Lotus tracksite, Chongqing Municipality, China.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583045, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.t002", "stats"=>{"downloads"=>0, "page_views"=>9, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Measurements_in_cm_of_isolated_ornithopod_tracks_from_the_Lotus_tracksite_Chongqing_Municipality_China_/1583045", "title"=>"Measurements (in cm) of isolated ornithopod tracks from the Lotus tracksite, Chongqing Municipality, China.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369568"], "description"=>"<p>Photograph (A), 3D height map (B) and interpretative outline drawing (C) of complexly overprinted ornithopod track series QIII-OI10–16 from the Lotus tracksite.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583038, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g014", "stats"=>{"downloads"=>0, "page_views"=>4, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Photograph_A_3D_height_map_B_and_interpretative_outline_drawing_C_of_complexly_overprinted_ornithopod_track_series_QIII_OI10_8211_16_from_the_Lotus_tracksite_/1583038", "title"=>"Photograph (A), 3D height map (B) and interpretative outline drawing (C) of complexly overprinted ornithopod track series QIII-OI10–16 from the Lotus tracksite.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369540"], "description"=>"<p>Plan view map of the Lotus tracksite (A) and stratigraphic sections of the Qijiang Lotus tracksite (B).</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583015, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g002", "stats"=>{"downloads"=>0, "page_views"=>7, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Plan_view_map_of_the_Lotus_tracksite_A_and_stratigraphic_sections_of_the_Qijiang_Lotus_tracksite_B_/1583015", "title"=>"Plan view map of the Lotus tracksite (A) and stratigraphic sections of the Qijiang Lotus tracksite (B).", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369578"], "description"=>"<p>Abbreviations: SL/h, relative stride length; S = absolute speed</p><p>Estimated data of the speed of Lotus ornithopod trackmakers.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583048, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.t005", "stats"=>{"downloads"=>1, "page_views"=>15, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Estimated_data_of_the_speed_of_Lotus_ornithopod_trackmakers_/1583048", "title"=>"Estimated data of the speed of Lotus ornithopod trackmakers.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369557"], "description"=>"<p>Note that specimens UCM 214.258–214.260 are preserved as replicas in the University of Colorado collections.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583028, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g008", "stats"=>{"downloads"=>0, "page_views"=>8, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Interpretative_map_based_on_drawings_of_small_sized_ornithopod_trackways_from_QIII_Lotus_tracksite_Qijiang_China_/1583028", "title"=>"Interpretative map based on drawings of small-sized ornithopod trackways from QIII, Lotus tracksite, Qijiang, China.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369581"], "description"=>"<div><p>The historically-famous Lotus Fortress site, a deep 1.5–3.0-meter-high, 200-meter-long horizonal notch high up in near-vertical sandstone cliffs comprising the Cretaceous Jiaguan Formation, has been known since the 13th Century as an impregnable defensive position. The site is also extraordinary for having multiple tetrapod track-bearing levels, of which the lower two form the floor of part of the notch, and yield very well preserved asseamblages of ornithopod, bird (avian theropod) and pterosaur tracks. Trackway counts indicate that ornithopods dominate (69%) accounting for at least 165 trackmakers, followed by bird (18%), sauropod (10%), and pterosaur (3%). Previous studies designated Lotus Fortress as the type locality of <i>Caririchnium lotus</i> and <i>Wupus agilis</i> both of which are recognized here as valid ichnotaxa. On the basis of multiple parallel trackways both are interpreted as representing the trackways of gregarious species. <i>C</i>. <i>lotus</i> is redescribed here in detail and interpreted to indicate two age cohorts representing subadults that were sometimes bipedal and larger quadrupedal adults. Two other previously described dinosaurian ichnospecies, are here reinterpreted as underprints and considered <i>nomina dubia</i>. Like a growing number of significant tetrapod tracksites in China the Lotus Fortress site reveals new information about the composition of tetrapod faunas from formations in which the skeletal record is sparse. In particular, the site shows the relatively high abundance of <i>Caririchium</i> in a region where saurischian ichnofaunas are often dominant. It is also the only site known to have yielded <i>Wupus agilis</i>. In combination with information from other tracksites from the Jiaguan formation and other Cretaceous formations in the region, the track record is proving increasingly impotant as a major source of information on the vertebrate faunas of the region. The Lotus Fortress site has been developed as a spectacular, geologically-, paleontologically- and a culturally-significant destination within Qijiang National Geological Park.</p></div>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583051, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059", "stats"=>{"downloads"=>5, "page_views"=>6, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_An_Ornithopod_Dominated_Tracksite_from_the_Lower_Cretaceous_Jiaguan_Formation_Barremian_8211_Albian_of_Qijiang_South_Central_China_New_Discoveries_Ichnotaxonomy_Preservation_and_Palaeoecology_/1583051", "title"=>"An Ornithopod-Dominated Tracksite from the Lower Cretaceous Jiaguan Formation (Barremian–Albian) of Qijiang, South-Central China: New Discoveries, Ichnotaxonomy, Preservation and Palaeoecology", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369547"], "description"=>"<p>An ornithopod track cast (A) and sauropod track cast (B) from QIII, ornithopod track mold and cast (C and D respectively) from QIV, ornithopod track casts (E and F) from QV, ornithopod track casts (G and H) from QVI, ornithopod track casts (F, I–K) from QVII.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583018, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g004", "stats"=>{"downloads"=>0, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Representative_dinosaur_tracks_from_the_Lotus_tracksite_/1583018", "title"=>"Representative dinosaur tracks from the Lotus tracksite.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369574"], "description"=>"<p>Abbreviations: L: Maximum length; W: Maximum width; D: Maximum depth; II-III, III-IV, II-IV: angle between digits II and III, III and IV, II and IV; PL: Pace length; SL: Stride length; PA: Pace angulation; L/W: Dimensionless. GO: Remarks. In all spreadsheets positive pes and manus track rotation = outward rotation, negative pes and manus track rotation = inward rotation. () indicate that a given value has a high uncertainty. Generally, this is related to poor or incomplete track preservation.</p><p>Measurements (in cm) of ornithopod tracks from the Lotus tracksite, Chongqing Municipality, China.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583044, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.t001", "stats"=>{"downloads"=>0, "page_views"=>5, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Measurements_in_cm_of_ornithopod_tracks_from_the_Lotus_tracksite_Chongqing_Municipality_China_/1583044", "title"=>"Measurements (in cm) of ornithopod tracks from the Lotus tracksite, Chongqing Municipality, China.", "pos_in_sequence"=>0, "defined_type"=>3, "published_date"=>"2015-10-22 03:09:28"}
  • {"files"=>["https://ndownloader.figshare.com/files/2369571"], "description"=>"<p>Interpretative outline drawing of bird trackways from the Lotus tracksite.</p>", "links"=>[], "tags"=>["Cretaceous Jiaguan Formation", "Qijiang National Geological Park", "Lotus Fortress site", "formation", "Wupus agilis", "tetrapod", "region", "information"], "article_id"=>1583041, "categories"=>["Uncategorised"], "users"=>["Lida Xing", "Martin G. Lockley", "Daniel Marty", "Jianping Zhang", "Yan Wang", "Hendrik Klein", "Richard T. McCrea", "Lisa G. Buckley", "Matteo Belvedere", "Octávio Mateus", "Gerard D. Gierliński", "Laura Piñuela", "W. Scott Persons IV", "Fengping Wang", "Hao Ran", "Hui Dai", "Xianming Xie"], "doi"=>"https://dx.doi.org/10.1371/journal.pone.0141059.g016", "stats"=>{"downloads"=>0, "page_views"=>11, "likes"=>0}, "figshare_url"=>"https://figshare.com/articles/_Interpretative_outline_drawing_of_bird_trackways_from_the_Lotus_tracksite_/1583041", "title"=>"Interpretative outline drawing of bird trackways from the Lotus tracksite.", "pos_in_sequence"=>0, "defined_type"=>1, "published_date"=>"2015-10-22 03:09:28"}

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{"start_date"=>"2015-01-01T00:00:00Z", "end_date"=>"2015-12-31T00:00:00Z", "subject_areas"=>[]}
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