Where: Shasta County, California (40.5° N, 122.5° W: paleocoordinates 41.6° N, 82.6° W)
When: Budden Canyon Formation, Cenomanian (100.5 - 93.9 Ma)
• the lowest beds of the Upper Cretaceous, where the sandy beds of this area overlie unconformably the shales of the later Horsetown group, with a distinct lithological and faunal change.
Environment/lithology: marine; conglomeratic sandstone and concretionary shale
Size class: macrofossils
Collected by F. M. Anderson; reposited in the CAS
Primary reference: F. M. Anderson. 1958. Upper Cretaceous of the Pacific Coast. Geological Society of America Memoir 71:1-378 [A. Miller/A. Hendy/M. Clapham]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 215424: authorized by Jonathan Marcot, entered by Jonathan Marcot on 10.11.2020
Creative Commons license: CC BY (attribution)
Taxonomic list
Scaphopoda | |
Dentalium stramineum Gabb 1864 tusk shell | |
Bivalvia | |
Cucullaea (Idonearca) sp. Conrad 1862 clam | |
"Parallelodon (Nanonavis) brewerianus" = Nanonavis breweriana
"Parallelodon (Nanonavis) brewerianus" = Nanonavis breweriana Gabb 1864 clam misspelled as "breweriana"
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"Meretrix arata" = Callistalox arata
"Meretrix arata" = Callistalox arata Gabb 1864 venus clam | |
Remondia shastensis n. sp.
Remondia shastensis n. sp. Anderson 1958 clam | |
"Trigonia colusaensis" = Yaadia leana
"Trigonia colusaensis" = Yaadia leana Gabb 1900 clam | |
"Trigonia aff. inezana" = Pterotrigonia evansana
"Trigonia aff. inezana" = Pterotrigonia evansana Meek 1864 clam | |
Gastropoda | |
Ampullina avellana Gabb 1864 snail |