Qubu, Bed QB-15 (Triassic of China)

Where: Xizang, China (28.3° N, 87.0° E: paleocoordinates 53.0° S, 64.9° E)

• coordinate estimated from map

• small collection-level geographic resolution

When: Ophiceras tibeticum ammonoid zone, Kangshare Formation, Griesbachian (251.9 - 250.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: lithified, dolomitic limestone

Size class: macrofossils

Reposited in the NIGPAS

Primary reference: C. Zhang, H. Bucher, and S. Z. Shen. 2017. Griesbachian and Dienerian (Early Triassic) ammonoids from Qubu in the Mt. Everest area, southern Tibet. Palaeoworld 26:650-662 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 189586: authorized by Matthew Clapham, entered by Matthew Clapham on 03.11.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Ceratitida - Xenodiscidae
"Ophiceras demissum" = Metophiceras demissum
"Ophiceras demissum" = Metophiceras demissum Oppel 1862 ceratite
 Ceratitida - Ophiceratidae
Ophiceras tibeticum Griesbach 1880 ceratite
Discophiceras wordiei Spath 1930 ceratite