Where: Wyoming (43.6° N, 110.5° W)

• Paleocoordinates: 32.2° N, 36.8° W (Wright 2013)

• coordinate estimated from map

• local area-level geographic resolution

When: Twin Creek Limestone Formation, Bajocian to Bajocian (170.3 - 163.5 Ma)

• formation-level stratigraphic resolution

Environment/lithology: lithified, gray shale

Size class: macrofossils

Preservation: original calcite

Primary reference: G. M. Philip. 1963. A new regular echinoid from the Jurassic of Wyoming, U.S.A. Journal of Paleontology 37(5):1110-1115 [S. Holland/S. Holland]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 163186: authorized by Steven Holland, entered by Steven Holland on 16.10.2014

Creative Commons license: CC0 (CC0)