CAS Loc. 39995, San Felipe (Pliocene of Mexico)

Where: Baja California, Mexico (31.0° N, 115.1° W: paleocoordinates 30.8° N, 113.8° W)

• outcrop-level geographic resolution

When: Pliocene (5.3 - 2.6 Ma)

• STRATIGRAPHIC RELATIONS: From unnamed lithostratigraphic unit, for which lithostratigraphic relationships are unknown. AGE: Pliocene, on the basis of macrofossil biostratigraphy; faunal compositional similarities with Imperial Fm of California. STRATIGRAPHIC POSITION: From unknown position in succession.

• bed-level stratigraphic resolution

Environment/lithology: coastal; siliciclastic sediments

• SPECIFIC LITHOLOGY: Unknown, but probably siliciclastic. LITHIFICATION: Unknown.

Size class: macrofossils

Preservation: original calcite

Collected by Childers in 1966; reposited in the CAS

Collection methods: surface (in situ),

• COLLECTOR: W.M. Childers, 1966. REPOSITORY: CAS.

Primary reference: L. G. Hertlein. 1968. Three late Cenozoic molluscan faunules from Baja California. with a note on diatomite from west of San Felipe. Proceedings of the the California Academy of Sciences 30(19):401-405 [A. Hendy/A. Hendy]more details

Purpose of describing collection: general faunal/floral analysis

PaleoDB collection 96587: authorized by Austin Hendy, entered by Austin Hendy on 13.06.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Not an authoritative publication, and with somewhat antiquated nomenclature, but with species-resolution identifications.
Echinoidea
 Clypeasteroida - Mellitidae
Encope tenuis Kew 1914 sand dollar
 Clypeasteroida - Clypeasteridae
Clypeaster cf. carrizoensis Kew 1914 sand dollar
Clypeaster bowersi Weaver 1908 sand dollar
Clypeaster deserti Kew 1914 sand dollar
 Spatangoida - Schizasteridae
Chondrichthyes
 Carcharhiniformes - Carcharhinidae
Carcharhinus leucas Valenciennes 1839 requiem shark
Bivalvia
 Pectinida - Pectinoidae
"Chlamys (Argopecten) cf. abietis" = Argopecten abietis, Chlamys (Chlamys) corteziana
"Chlamys (Argopecten) cf. abietis" = Argopecten abietis Jordan and Hertlein 1926 calico scallop
Chlamys (Chlamys) corteziana Durham 1950 scallop
 Ostreida - Gryphaeidae
"Ostrea heermanni" = Pycnodonte heermanni
"Ostrea heermanni" = Pycnodonte heermanni Conrad 1855 oyster
 Arcida - Arcidae
"Anadara cf. multicostata" = Larkinia multicostata
"Anadara cf. multicostata" = Larkinia multicostata Sowerby 1833 ark
Gastropoda
 Sorbeoconcha - Ficidae
 Sorbeoconcha - Strombidae
"Strombus cf. granulatus" = Persististrombus granulatus
"Strombus cf. granulatus" = Persististrombus granulatus Swainson 1822 true conch
 Sorbeoconcha - Cypraeidae
Cypraea sp. Linnaeus 1758 cowry
 Neogastropoda - Olividae
Oliva spicata Durham 1950 olive snail
 Neogastropoda - Buccinidae
 Neogastropoda - Fasciolariidae
"Fasciolaria princeps" = Triplofusus princeps
"Fasciolaria princeps" = Triplofusus princeps Sowerby 1825 snail
 Neogastropoda - Conidae
Conus sp. Linnaeus 1758 cone shell
 Sorbeoconcha - Naticidae
Polinices sp. Monfort 1810 moon snail