USGS 14650 - Graciosa Ridge [Careaga Sandstone] (Pliocene of the United States)

Also known as Woodring Loc. 173; W663

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 189760: 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.
 Pholadida - Myidae
 Cardiida - Mactridae
"Spisula cf. hemphilli" = Mactromeris hemphillii, "Schizothaerus cf. nuttallii" = Tresus nuttallii
"Spisula cf. hemphilli" = Mactromeris hemphillii Dall 1894 clam
"Schizothaerus cf. nuttallii" = Tresus nuttallii Conrad 1837 clam
 Cardiida - Veneridae
"Protothaca cf. tenerrima" = Callithaca tenerrima
"Protothaca cf. tenerrima" = Callithaca tenerrima Carpenter 1857 venus clam
 Cardiida - Tellinidae
Macoma cf. nasuta Conrad 1837 tellin clam
SUBSPECIES: Macoma cf. nasuta kelseyi
 Solenida - Solenidae
"Solen perrini" = Solena (Eosolen) perrini
"Solen perrini" = Solena (Eosolen) perrini Clark 1915 clam
 Solenida - Pharidae
 Protobranchia - Nuculanidae
Saccella ? taphria Dall 1896 pointed nut clam
 Neogastropoda - Nassariidae
""Nassa" moraniana" = Nassarius (Caesia) moranianus
""Nassa" moraniana" = Nassarius (Caesia) moranianus Martin 1914 snail
 Neogastropoda - Muricidae
Nucella sp. murex snail