Where: Merced County, California (37.2° N, 121.1° W: paleocoordinates 43.3° N, 96.5° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Neodesmoceras catarinae ammonoid zone, Quinto Silt Member (Moreno Formation), Maastrichtian (72.1 - 66.0 Ma)
• LITHOSTRATIGRAPHY: From the Quinto Silt of the Moreno Fm, Asuncion Gp, which overlies the Mustang Shale Mbr and is overlain by the Garzas Sand. AGE: Maastrichtian, on the basis of ammonoid biostratigraphy. STRATIGRAPHIC POSITION: From unknown position within the the Quinto Silt.
• bed-level stratigraphic resolution
Environment/lithology: marine; lithified sandstone
Size class: macrofossils
Preservation: cast, mold/impression
Reposited in the CAS
Collection methods: surface (in situ),
• COLLECTOR: Multiple collections, including Taff, Hanna, Cross, Bennison, McCoy and Anderson. REPOSITORY: California Academy of Sciences.
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: biostratigraphic analysis
PaleoDB collection 83791: authorized by Austin Hendy, entered by Austin Hendy on 01.09.2008, edited by Jonathan Marcot
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
"Opisoma pacifica" = Opis (Hesperopis) triangulata
"Opisoma pacifica" = Opis (Hesperopis) triangulata Cooper 1894 clam | |
"Trigonocallista nitida" = Calva (Egelicalva) nitida
"Trigonocallista nitida" = Calva (Egelicalva) nitida Gabb 1864 venus clam | |
Gastropoda | |
"Phasianella garzana" = Tylostoma garzana
"Phasianella garzana" = Tylostoma garzana Anderson 1958 snail | |
"Pugnellus aff. hamulus" = Pyktes hamulus
"Pugnellus aff. hamulus" = Pyktes hamulus Gabb 1864 snail | |
Cephalopoda | |
Baculites aff. lomaensis Anderson 1958 ammonite
Baculites aff. occidentalis Meek 1861 ammonite | |
Rhynchonellata | |
Rhynchonella sp. Fischer 1809 |