Where: Modoc County, California (41.5° N, 120.6° W: paleocoordinates 41.6° N, 120.0° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Alturas Formation, Blancan (4.9 - 1.8 Ma)

• "several fish beds"; Upper Alturas Formation, below 4.8 Ma tuff

Environment/lithology: terrestrial; siltstone

Size classes: macrofossils, mesofossils, microfossils

Reposited in the UCMP

Primary reference: H. M. Wagner, C. B. Hanson, E. P. Gustafson, K. W. Gobalet, and D. P. Whistler. 1997. Biogeography of the Pliocene and Pleistocene vertebrate faunas of Northeastern California and their temporal significance to the development of the Modoc Plateau and Klamath Mountain Region. San Bernardino County Museum Association Quarterly 44(1):13-21 [P. Holroyd/P. Holroyd]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 234660: authorized by Patricia Holroyd, entered by Patricia Holroyd on 27.04.2024

Creative Commons license: CC BY (attribution)