Where: Inyo County, California (37.3° N, 118.2° W: paleocoordinates 0.1° N, 97.1° W)

• coordinate based on nearby landmark

When: Nevadella - Holmia trilobite zone, Upper Member (Poleta Formation), Dyeran (515.3 - 511.2 Ma)

• PMNG: Nevadella biozone ranges 518.4 - 515.4 Ma according to Gradstein, et al. (2020).

• member-level stratigraphic resolution

Environment/lithology: offshore; lithified, calcareous mudstone

Size classes: macrofossils, mesofossils

Preservation: mold/impression

Reposited in the LACM, TMM, UCMP, USNM

Collection methods: quarrying, surface (float), surface (in situ)

Primary reference: J. Sprinkle. 1973. Morphology and evolution of blastozoan echinoderms. Harvard University Museum of Comparative Zoology, Special Publication 1-283 [G. Webster/G. Webster/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 90625: authorized by Alex Lin, entered by Alex Lin on 11.08.2009

Creative Commons license: CC BY (attribution)