USGS 14877 - Casmalia Hills [Foxen Mudstone] (Pliocene to of the United States)

Also known as Woodring Loc. 146; W20

Where: Santa Barbara County, California (34.9° N, 120.5° W: paleocoordinates 34.7° N, 119.3° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Foxen Mudstone Formation, Zanclean to Zanclean (5.3 - 2.6 Ma)

• LITHOSTRATIGRAPHY: From the Foxen Mudstone, which overlies the Sisquoc Formation (late Miocene-early Pliocene) and underlies the Careaga Formation (late Pliocene). AGE: Early-middle Pliocene, on the basis of foraminiferal and microfossil biostratigraphy.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified mudstone

• PALEOENVIRONMENT: Established on the basis of faunal composition.
• LITHOLOGY: Mudstone. LITHIFICATION: Assumed on the basis of figured specimens.

Size class: macrofossils

Collected by W. Woodring; reposited in the USNM

Collection methods: surface (in situ),

• COLLECTORS: Not reported, but assumed to be W. Woodring. REPOSITORY: Smithsonian (USNM).

Primary reference: W. P. Woodring and M.N. Bramlette. 1950. Geology and paleontology of the Santa Maria District California. United States Geological Survey Professional Paper 222 [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 189547: authorized by Austin Hendy, entered by Austin Hendy on 30.10.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for macrofossils. NOMENCLATURE: Somewhat antiquated nomenclature.
 Pectinida - Pectinoidae
Patinopecten dilleri Dall 1901 scallop
 Neogastropoda - Columbellidae
Mitrella gausapata Gould 1850 snail
 Neogastropoda - Nassariidae
""Nassa" waldorfensis" = Nassarius (Demondia) californianus
""Nassa" waldorfensis" = Nassarius (Demondia) californianus Conrad 1856 snail
"Nassa" waldorfensis
 Calyptraeoidea - Calyptraeidae
Crepidula princeps Conrad 1855 slipper shell
 Sorbeoconcha - Cerithiidae
Bittium casmaliense cerith snail