Where: Anhui, China (31.6° N, 117.8° E: paleocoordinates 20.1° N, 99.8° E)
• coordinate based on nearby landmark
• small collection-level geographic resolution
When: Biandanshan Formation, Spathian (251.3 - 247.2 Ma)
• group of beds-level stratigraphic resolution
Environment/lithology: basinal (); lithified claystone
Size class: macrofossils
Preservation: mold/impression
Reposited in the NIGPAS
Primary reference: P. X. Guo. 1982. On the occurrence of late Lower Triassic ammonoids from Anhui and Jiangsu. Acta Palaeontologica Sinica 21:560-567 [M. Clapham/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 150821: authorized by Matthew Clapham, entered by Matthew Clapham on 15.09.2013
Creative Commons license: CC BY (attribution)
Taxonomic list
Cephalopoda | |
Subcolumbites chaohuensis n. sp. Guo 1982 ceratite
Subcolumbites perrinismithi Arthaber 1908 ceratite
Subcolumbites chaoxianensis n. sp. Guo 1982 ceratite | |
Arnautoceltites subglobosus n. sp.
Arnautoceltites subglobosus n. sp. Guo 1982 ceratite |