Beaver Dam Mountains BD-A-5 (Triassic of the United States)

Where: Utah (37.0° N, 113.7° W: paleocoordinates 8.3° N, 39.2° W)

• coordinate stated in text

• small collection-level geographic resolution

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

• bed-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; lithified limestone

• Thin limestone layer in offshore-transition siltstone succession

Size class: macrofossils

Preservation: mold/impression

Collected by R. Hofmann, M. Wasmer in 2009, 2010

Primary reference: R. Hofmann, M. Hautmann, M. Wasmer and H. Bucher. 2013. Palaeoecology of the Spathian Virgin Formation (Utah, USA) and its implications for the Early Triassic recovery. Acta Palaeontologica Polonica 58:149-173 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 122199: authorized by Matthew Clapham, entered by Matthew Clapham on 19.12.2011

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Hexactinellida
 Lyssacinosa - Euplectellidae
Cypellospongia "sp. A"
Cypellospongia "sp. A" Rigby and Gosney 1983 glass sponge
Bivalvia
 Pectinida - Aviculopectinidae
Eumorphotis cf. venetiana, Eumorphotis ericius
Eumorphotis cf. venetiana Hauer 1850 scallop
Eumorphotis ericius Hautmann et al. 2013 scallop
 Pectinida - Entoliidae
Pernopecten "sp. A"
Pernopecten "sp. A" Winchell 1865 scallop
 Ostreida - Bakevelliidae
Bakevellia costata
Bakevellia costata Schlotheim 1820 oyster
 Myalinida - Myalinidae
Promyalina putiatinensis
Promyalina putiatinensis Kiparisova 1938 clam
 Carditida - Astartidae
Astartidae "sp. A"
Astartidae "sp. A" d'Orbigny 1844 clam
Rhynchonellata
 Rhynchonellida - Norellidae
Piarorhynchella triassica
Crinoidea
 Holocrinida - Holocrinidae
Holocrinus smithi
Holocrinus smithi Clark and Twitchell 1915 Sea lily
Echinoidea
 Cidaroida - Miocidaridae
Miocidaris utahensis
Miocidaris utahensis pencil urchin