Also known as UCMP IP23837

Where: Alaska (55.5° N, 161.5° W: paleocoordinates 61.4° N, 152.6° W)

• coordinate estimated from map

When: Tolstoi Formation, Bartonian (41.3 - 38.0 Ma)

• “Late middle Eocene”

Environment/lithology: marine; siltstone and sandstone

Size class: macrofossils

Preservation: cast, mold/impression

Reposited in the UCMP

Primary reference: L. Marincovich. 1988. Late middle Eocene mollusks of the Tolstoi Formation, Alaska Peninsula, Alaska, and correlations with faunas from California to the Far-eastern U.S.S.R. In M. V. Filewicz and R.L. Squires (eds.), SEPM West Coast Paleogene Symposium 58:265-281 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 194404: authorized by Patricia Holroyd, entered by Patricia Holroyd on 19.06.2018

Creative Commons license: CC BY (attribution)