Where: Shasta County, California (40.8° N, 122.0° W: paleocoordinates 15.8° N, 57.9° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Hosselkus Formation, Lacian (221.5 - 215.6 Ma)

Environment/lithology: lithified limestone

Size class: macrofossils

Primary reference: J. P. Smith. 1927. Upper Triassic marine invertebrate faunas of North America. United States Geological Survey Professional Paper 141:1-262 [D. Bottjer/C. Powers/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 33355: authorized by David Bottjer, entered by Catherine Powers on 28.07.2003, edited by Wolfgang Kiessling

Creative Commons license: CC BY (attribution)