Santa Barbara (USGS 14944) - #46 (Woodring & Bramlette, 1950) (Miocene to of the United States)

Also known as USGS 14944

Where: Santa Barbara County, California (34.8° N, 120.2° W: paleocoordinates 34.4° N, 117.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tinaquaic Sandstone Member (Sisquoc Formation), Late/Upper Miocene to Late/Upper Miocene (11.6 - 3.6 Ma)

• The Sisquoc Formation contains two principal lithologic facies: a fine-grained basin facies ( Todos Santos Claystone mbr) consisting chiefly of diatomaceous mudstone and a marginal sandstone facies ( Tinaquaic sandstone mbr). The basin facies of the Sisquoc Formation overlies the Monterey Formation without discordance. A maximum thickness of 5000 ft is estimated from the subsurface, although the maximum exposed thickness of the formation is 3000 ft

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, medium-grained, coarse, calcareous sandstone

• Medium-grained to coarse-grained sandstone with grit and calcareous beds. Fines upsection.

Size class: macrofossils

Preservation: mold/impression, replaced with phosphate

Reposited in the USGS

Collection methods: quarrying,

• Presumably reposited in UGGS collections...not specified

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: taxonomic analysis

PaleoDB collection 39396: authorized by Austin Hendy, entered by Austin Hendy on 27.05.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

• Exhaustive for mollusca
Bivalvia
 Arcida - Arcidae
"Anadara cf. trilineata" = Anadara (Anadara) trilineata
"Anadara cf. trilineata" = Anadara (Anadara) trilineata Conrad 1856 ark
 Pectinida - Pectinoidae
Patinopecten lohri Hertlein 1928 scallop
 Mytilida - Mytilidae
"Volsella cf. capax" = Modiolus capax
"Volsella cf. capax" = Modiolus capax Conrad 1837 mussel
 Pholadida - Myidae
Cryptomya cf. californica Conrad 1837 softshell clam
 Cardiida - Mactridae
"Schizothaerus cf. nuttallii" = Tresus nuttallii, ? Spisula sp.
"Schizothaerus cf. nuttallii" = Tresus nuttallii Conrad 1837 clam
? Spisula sp. Gray 1837 clam
 Cardiida - Veneridae
"Protothaca tenerrima" = Callithaca tenerrima
"Protothaca tenerrima" = Callithaca tenerrima Carpenter 1857 venus clam
 Cardiida - Tellinidae
Macoma cf. nasuta Conrad 1837 tellin clam
 Hiatellida - Hiatellidae
"Panopea cf. generosa" = Panopea abrupta
"Panopea cf. generosa" = Panopea abrupta Conrad 1849 clam
Gastropoda
 Neogastropoda - Buccinidae