Beaver Dam Mountains BM5, Bed 6 (Triassic of the United States)

Where: Washington County, Utah (37.1° N, 113.7° W: paleocoordinates 8.4° N, 39.2° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Virgin Member (Moenkopi Formation), Spathian (251.3 - 247.2 Ma)

• bed-level stratigraphic resolution

Environment/lithology: lithified limestone

Size class: macrofossils

Preservation: mold/impression

Reposited in the USNM

Primary reference: A. J. McGowan, A. B. Smith, and P. D. Taylor. 2009. Faunal diversity, heterogeneity and body size in the Early Triassic: testing post-extinction paradigms in the Virgin Limestone of Utah, USA. Australian Journal of Earth Sciences 56:859-872 [A. McGowan/A. McGowan/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 64715: authorized by Alistair McGowan, entered by Alistair McGowan on 13.09.2006, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Tentaculita
 Microconchida -
Microconchus utahensis2 Zatoń et al. 2013
Bivalvia
 Cardiida - Anthracosiidae
Unionites canalensis1 Catullo 1847 clam
 Cardiida - Kalenteridae
Myoconcha cf. plana1 Kiparisova 1938 clam
 Arcida - Parallelodontidae
? Parallelodon aff. beyrichii1 Strombeck 1849 clam
 Ostreida - Bakevelliidae
Bakevellia costata1 Schlotheim 1820 oyster
 Myalinida - Myalinidae
Promyalina putiatinensis1 Kiparisova 1938 clam
Rhynchonellata
 Terebratulida - Gusarellidae
Protogusarella smithi Perry and Chatterton 1979
Echinoidea
 Cidaroida - Triadotiaridae
Lenticidaris utahensis Kier 1968 pencil urchin