Where: Humboldt County, California (40.5° N, 124.4° W: paleocoordinates 39.4° N, 122.3° W)

• coordinate estimated from map

When: Rio Dell Formation (Wildcat Group), Pliocene (5.3 - 2.6 Ma)

• "middle and upper portion of Wildcat Series" of Martin 1914, 1916

Environment/lithology: coastal; lithology not reported

Size class: macrofossils

Collected by B. Martin in 1911; reposited in the UCMP

Primary reference: B. Martin. 1914. Descriptions of new species of fossil Mollusca from the later marine Neocene of California. University of California Publications Bulletin of the Department of Geology 8(7):181-202 [J. Marcot/J. Marcot]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 220032: authorized by Jonathan Marcot, entered by Jonathan Marcot on 30.04.2021

Creative Commons license: CC BY (attribution)