Where: Washington County, Utah (37.0° N, 113.7° W: paleocoordinates 7.9° N, 39.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• "top of the Lower Triassic" = Spathian

•multiple slabs from an unstated stratigraphic interval

Environment/lithology: marine; fine-grained sandstone

Size class: macrofossils

Preservation: adpression

Collected by Afton Fawcett and Allen Graffham; reposited in the USNM

Primary reference: P. M. Kier. 1968. The Triassic echinoids of North America. Journal of Paleontology 42(4):1000-1006 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 72294: authorized by John Alroy, entered by John Alroy on 30.05.2007, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)