Beaver Dam Mountains BM1, Bed 7a (Triassic of the United States)

Where: Washington County, Utah (37.1° N, 113.8° W: paleocoordinates 8.1° N, 39.5° 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• coordinate based on unpublished field data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, shelly/skeletal limestone

Size class: macrofossils

Collection methods: surface (in situ),

Primary reference: M. Hautmann, A. B. Smith, A. J. McGowan and H. Bucher. 2013. Bivalves from the Olenekian (Early Triassic) of south-western Utah: systematics and evolutionary significance. Journal of Systematic Palaeontology 11:263-293 [M. Clapham/M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 141588: authorized by Matthew Clapham, entered by Matthew Clapham on 29.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Pectinida - Hunanopectinidae
Leptochondria nuetzeli n. sp.
Leptochondria nuetzeli n. sp. Hautmann et al. 2013 scallop
 Pectinida - Aviculopectinidae
Eumorphotis cf. multiformis
Eumorphotis cf. multiformis Bittner 1899 scallop
 Ostreida - Bakevelliidae
Bakevellia cf. exporrecta
Bakevellia cf. exporrecta Lepsius 1878 oyster
 Myalinida - Myalinidae
Promyalina putiatinensis
Promyalina putiatinensis Kiparisova 1938 clam
 Trigoniida - Trigonodidae
Trigonodus cf. sandbergeri
Trigonodus cf. sandbergeri von Alberti 1864 clam
 Trigoniida - Myophoriidae
? Heminajas cf. balatonis
 Cardiida - Anthracosiidae
Unionites fassaensis, Unionites cf. borealis
Unionites fassaensis Wissmann 1841 clam
Unionites cf. borealis Spath 1935 clam