USGS 14647 - Graciosa Ridge [Careaga Sandstone] (Pliocene of the United States)

Also known as Woodring Loc. 172; W660

Where: Santa Barbara County, California (34.8° N, 120.4° W: paleocoordinates 34.7° N, 119.5° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Cebada Member (Careaga Sandstone Formation), Piacenzian (3.6 - 2.6 Ma)

• LITHOSTRATIGRAPHY: From the Cebada Member of the Careaga Sandstone, which overlies the Foxen Mudstone (mid-late Pliocene) and underlies the Paso Robles Fm (Pleistocene). AGE: Late Pliocene, on the basis of foraminiferal and microfossil biostratigraphy.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; poorly lithified, silty sandstone

• PALEOENVIRONMENT: Established on the basis of faunal composition.
• LITHOLOGY: Fine-grained sandstone. LITHIFICATION: Assumed poorly lithified on the basis of figured specimens.

Size classes: macrofossils, mesofossils

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 189759: authorized by Austin Hendy, entered by Austin Hendy on 05.11.2017

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for macrofossils. NOMENCLATURE: Somewhat antiquated nomenclature.
Bivalvia
 Arcida - Arcidae
"Anadara cf. trilineata" = Anadara (Anadara) trilineata
"Anadara cf. trilineata" = Anadara (Anadara) trilineata Conrad 1856 ark
 Pectinida - Pectinoidae
Patinopecten dilleri Dall 1901 scallop
 Carditida - Carditidae
 Cardiida - Semelidae
 Lucinida - Lucinidae
"Lucinoma cf. annulata" = Lucinoma annulatum
"Lucinoma cf. annulata" = Lucinoma annulatum Reeve 1850 clam
Gastropoda
 Naticoidea - Naticidae
Cryptonatica aleutica Dall 1919 moon snail
 Calyptraeoidea - Calyptraeidae
Crepidula princeps Conrad 1855 slipper shell
 Sorbeoconcha - Turritellidae
Turritella cooperi Carpenter 1864 turret shell
 Sorbeoconcha - Cerithiidae
Bittium casmaliense cerith snail