Also known as LACMIP loc. 23373

Where: Shasta County, California (40.6° N, 122.1° W: paleocoordinates 45.5° N, 86.6° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Hooten Gulch Mudstone Member (Redding Formation), Late/Upper Coniacian to Late/Upper Coniacian (89.3 - 83.5 Ma)

• Str. Position: Member IV

•Age: Lower Senonian (UpPer Coniacian or Lower Santonian)

• member-level stratigraphic resolution

Environment/lithology: marine; lithified, massive sandstone and conglomerate

Size class: macrofossils

Collected by R. W. Imlay and W. P. Popenoe in 1955; reposited in the LACM

Primary reference: T. Matsumoto. 1960. Upper Cretaceous ammonites of California. Part III. Memoirs of the Faculty of Science, Kyushu University Series D, Geology, Special Volume II 1-204 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 224929: authorized by Jonathan Marcot, entered by Jonathan Marcot on 13.04.2022

Creative Commons license: CC BY (attribution)