USGS loc. 24662, Charlie Valley (Jurassic of the United States)

Also known as LACMIP loc. 5952; Locality #1 of Easton and Imlay (1955: p. 2339)

Where: San Luis Obispo County, California (35.1° N, 120.2° W: paleocoordinates 30.3° N, 65.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Franciscan Group, Tithonian (152.1 - 145.0 Ma)

Environment/lithology: marine; lithified, fine-grained, black carbonate

• The fossils came from a 1-foot thick, black, fine-grained, crystalline, hard limestone 5 feet below the top of the low knob.

Size class: macrofossils

Reposited in the USGS

Primary reference: W. H. Easton and R. W. Imlay. 1955. Upper Jurassic Fossil Localities in Franciscan and Knoxville Formations in Southern California. American Association of Petroleum Geologists Bulletin 39(11):2336-2340 [J. Marcot/J. Marcot]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 151980: authorized by Matthew Clapham, entered by Marko Manojlovic on 27.10.2013, edited by Jonathan Marcot

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
 Heterostropha - Cylindrobullinidae
? Goniocylindrites sp.
? Goniocylindrites sp. Meek 1863 snail
 Seguenzioidea - Eucyclidae
"? Amberleya dilleri" = Ambercyclus dilleri
"? Amberleya dilleri" = Ambercyclus dilleri Stanton 1895 snail
 Trochoidea - Turbinidae
? Turbo sp.
? Turbo sp. Linnaeus 1758 snail
 Cerithioidea - Cerithiidae
"? Procerithium paskentaensis" = Cerithium paskentaense
"? Procerithium paskentaensis" = Cerithium paskentaense Stanton 1895 cerith snail
Bivalvia
 Solemyida - Solemyidae
"Solemya stantoni" = Acharax stantoni
"Solemya stantoni" = Acharax stantoni Vokes 1955 Awning Clam
 Nuculida - Nuculidae
"Nucula gabbi" = Leionucula gabbi
"Nucula gabbi" = Leionucula gabbi Stanton 1895 nut clam
 Pectinida - Buchiidae
Buchia piochii
Buchia piochii Gabb 1864 scallop
 Mytilida - Mytilidae
? Mytilidae indet.
? Mytilidae indet. Rafinesque 1815 mussel
"mytilid?"
 Carditida - Cardiniidae
Cardiniopsis cf. unioides
Cardiniopsis cf. unioides Stanton 1895 clam
 Lucinida - Lucinidae
Lucina cf. colusaensis
Lucina cf. colusaensis Stanton 1895 clam
 Pholadomyida - Pholadomyidae
? Arcomya sp.
? Arcomya sp. Agassiz 1838 clam
Cephalopoda
 Ammonitida - Himalayitidae
? Aulacosphinctes sp.