Where: Tehama County, California (40.2° N, 121.8° W: paleocoordinates 47.4° N, 89.6° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Late/Upper Santonian to Late/Upper Santonian (85.8 - 70.6 Ma)
• Str. position: A small exposure of Cretaceous mudstone, surrounded by Cenozoic volcanic rocks
•Fossils: Canadoeeras yokoyamai (JIMBO)*, Canadoeeras n. sp. ( ?) aff. C. hoepeni COLLIGNON, Hauerieeras cf. angustum YABE, Glyptoxoeeras sp., Tetragonites sp., Inoeeramus naumanni YOKOYAMA, other mollusks
•Age: Uppermost Santonian or Lower Campanian
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified mudstone
Size class: macrofossils
Collected by S. W. Miller; reposited in the CAS
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 225736: authorized by Jonathan Marcot, entered by Jonathan Marcot on 27.05.2022
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Inoceramus naumanni" = Sphenoceramus naumanni
"Inoceramus naumanni" = Sphenoceramus naumanni Yokoyama 1890 clam | |
Cephalopoda | |
"Hauericeras cf. angustum" = Hauericeras (Gardeniceras) angustum
"Hauericeras cf. angustum" = Hauericeras (Gardeniceras) angustum Yabe 1904 ammonite | |
Canadoceras yokoyamai Jimbo 1894 ammonite | |
Tetragonites sp. Kossmat 1895 ammonite | |
Glyptoxoceras sp. Spath 1925 ammonite |