Virgin Transect V1 Bed 9A (Triassic of the United States)

Where: Washington County, Utah (37.2° N, 113.2° W: paleocoordinates 7.9° N, 39.1° W)

• small collection-level geographic resolution

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

Environment/lithology: green siltstone and shelly/skeletal, calcareous grainstone

• Green siltstone with occasional layers of small intraclasts (gravel). Basal 20-40 cm calc-arenite with Promyalina shell beds with poor preservation forming rubbly transition to the bed below

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 63037: authorized by Alistair McGowan, entered by Alistair McGowan on 02.08.2006, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Tentaculita
 Microconchida -
Microconchus utahensis2
Microconchus utahensis2 Zatoń et al. 2013
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
Right Valves Counted
 Trigoniida - Myophoriidae
? Heminajas cf. balatonis1
? Heminajas cf. balatonis1 Frech 1905 clam
1Hautmann et al. 2013; 2Zatoń et al. 2013