Locality B57, Upper marine limestone, 15 km south of Wenquan, Qiangtang Terrane (Jurassic of China)

Where: Qinghai, China (33.1° N, 91.8° E: paleocoordinates 25.1° N, 89.2° E)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Yanshiping Group, Bathonian (168.3 - 166.1 Ma)

• Yanshiping Group; Upper marine limestone

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified limestone

• brackish to marine limestones within a red bed fluviatile sequence

Size class: macrofossils

Collection methods: Paleontological collections made on the 1985 Geotraverse.

Primary reference: A. B. Smith and J. Xu. 1988. Palaeontology of the 1985 Geotraverse, Lhasa to Golmud. Philosophical Transactions of the Royal Society of London A 327:53-105 [M. Aberhan/S. Nurnberg/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 61520: authorized by Martin Aberhan, entered by Sabine Nürnberg on 16.06.2006

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Echinoidea
  -
Echinoidea indet.
Echinoidea indet. Leske 1778 sea urchin
regular euechinoid, either an Acrosaleniidae or Hemicidaridae
Rhynchonellata
 Rhynchonellida - Tetrarhynchiidae
Burmirhynchia praestans, "? Burmirhynchia gutta" = Burmirhynchia (Burmirhynchia) gutta, "Burmirhynchia globulus" = Burmirhynchia (Burmirhynchia) gutta
"? Burmirhynchia gutta" = Burmirhynchia (Burmirhynchia) gutta Buckman 1917
"Burmirhynchia globulus" = Burmirhynchia (Burmirhynchia) gutta Buckman 1917
 Terebratulida - Postepithyrididae
Holcothyris acuminata, Holcothyris subovalis, Holcothyris trigonalis
Holcothyris acuminata Buckman 1917
Holcothyris subovalis Buckman 1917
Holcothyris trigonalis Buckman 1917
 Terebratulida - Loboidothyrididae
Cererithyris sp.
Cererithyris sp. Buckman 1917
Gastropoda
 Sorbeoconcha - Naticidae
Naticidae indet.
Naticidae indet. Guilding 1834 moon snail
naticid gastropod
Bivalvia
 Mytilida - Mytilidae
Modiolus sp.
Modiolus sp. Lamarck 1801 mussel
 Pectinida - Pectinoidae
Camptonectes sp., Camptonectes cf. auritus
Camptonectes sp. Meek 1864 scallop
smooth or exfoliate specimen
Camptonectes cf. auritus Schlotheim 1813 scallop
 Ostreida - Gryphaeidae
Praeexogyra cf. hebredica
Praeexogyra cf. hebredica oyster
[?=Ostrea dovaiacencis burmanica]
 Pholadida - Ceratomyidae
Ceratomya sp.
Ceratomya sp. Sandberger 1864 clam
 Lucinida - Lucinidae
? Sphaeriola sp.
? Sphaeriola sp. Stoliczka 1871 clam