SBMNH Berry Loc. 2 (Oligocene to of the United States)

Where: Meagher County, Montana (46.6° N, 111.0° W: paleocoordinates 47.6° N, 106.2° W)

• coordinate stated in text

When: Deep River Formation, Late/Upper Oligocene to Late/Upper Oligocene (28.4 - 16.0 Ma)

• 23 m above base of Deep River Formation SE of Fort Logan

Environment/lithology: terrestrial; lithology not reported

• environment interpreted as mesic, temperate climate with woodland having similar climate requirements as modern mixed mesophytic. Precipitation no less than 75cm.

Size class: macrofossils

Collected by S. S. Berry

Primary reference: B. Roth and K. C. Emberton. 1994. "Extralimital" Land Mollusks (Gastropoda) from the Deep River Formation, Montana: Evidence for Mesic Medial Tertiary Climate. Proceedings of the Academy of Natural Sciences of Philadelphia 145:93-106 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 200343: authorized by Patricia Holroyd, entered by Patricia Holroyd on 29.03.2019

Creative Commons license: CC BY (attribution)

Taxonomic list

• specimens held at Santa Barbara Museum of Natural History
Show authors, comments, and common names
Gastropoda
 Cycloneritida - Helicinidae
Hendersonia stillmani
Hendersonia stillmani Roth and Emberton 1994 snail
 Stylommatophora - Polygyridae
Patera sp.
Patera sp. Albers 1850 slug