YTZC25B Wayao, Guanling (Triassic of China)

Where: Guizhou, China (25.9° N, 105.5° E: paleocoordinates 20.3° N, 87.3° E)

• coordinate estimated from map

When: Zhuganpo Formation, Julian (235.0 - 232.0 Ma)

• Upper Zhuganpo Formation

Environment/lithology: nodular limestone

Size class: microfossils

Preservation: original phosphate

Collection methods: chemical, acetic

• Yichang Institute of Geology and Mineral Resources

Primary reference: L. Chen and G. Cuny. 2003. Discovery of the Middle-Late Triassic elasmobranch ichthyoliths from the Guanling area, Guizhou, SW China. Geological Bulletin of China 22(4):237-247 [M. Clapham/P. Vazquez]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 131034: authorized by Matthew Clapham, entered by Priscilla Vazquez on 18.07.2012

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Chondrichthyes
  -
Annulicorona pyramidalis, Parvicorona dacrysulca n. sp., Sacrisubcorona circabasis, Labrilancea glabrisubcuspis, Glabrisubcorona arduidevexa, Lobaticorona floriditurris
Annulicorona pyramidalis Chen and Cuny 2003 elasmobranch
TC0195, TC0193, TC0069, TC0194, TC0197
Parvicorona dacrysulca n. sp. Chen and Cuny 2003 elasmobranch
TC0072
Sacrisubcorona circabasis Johns et al. 1997 elasmobranch
TC0190
Labrilancea glabrisubcuspis Johns 1997 elasmobranch
TC0193
Glabrisubcorona arduidevexa Johns 1997 elasmobranch
TC0073
Lobaticorona floriditurris Johns 1997 elasmobranch
TC0199