USNM loc,. 42040, Silver Peak Range (Ordovician of the United States)

Where: Esmeralda County, Nevada (37.9° N, 117.9° W: paleocoordinates 3.7° S, 85.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Emigrant Formation, Early/Lower Ordovician (485.4 - 470.0 Ma)

• "Collectively, the evidence shows that Esmeraldacaris is early Ordovician in age; more work on the overall succession is needed to place it more precisely."

Environment/lithology: offshore shelf; fine-grained limestone and brown, red siltstone

Size class: mesofossils

Preservation: mold/impression

Collected by Waggoner, Richardson in 2000; reposited in the USNM

Primary reference: B. Waggoner. 2003. Non-trilobite arthropods from the Silver Peak Range, Nevada. Journal of Paleontology 77:706-720 [A. McGowan/A. McGowan/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 205328: authorized by Jonathan Marcot, entered by Jonathan Marcot on 11.10.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

 Life -