CSUN 662, Orocopia Mountains (Eocene of the United States)

Also known as UCLA loc. 3779; Locality F of Crowell and Susuki (1959); LACMIP loc. 23779; LACMIP loc. 40662

Where: Riverside County, California (33.6° N, 115.7° W: paleocoordinates 36.0° N, 98.7° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: P7 - P8 foram zone, Maniobra Formation, Ypresian (56.0 - 47.8 Ma)

• Basal part of formation; Capay Stage; Foraminifera indicative of P7 to P9 Zones and calcareous nannofossils indicative of CP9 to CP11 Zones also have been found 58 m upsection from CSUN locality 662 (Advocate, 1983).

• bed-level stratigraphic resolution

Environment/lithology: offshore; shale

• These deposits represent a transitional marginal marine to deep-water submarine-fan sequence deposited in subtropical waters (Advocate, 1983).
• consists of siliciclastics that locally contain some macrofossils and microfossils.

Size classes: macrofossils, mesofossils

Primary reference: R. L. Squires and D. M. Advocate. 1986. New Early Eocene Mollusks from the Orocopia Mountains, Southern California. Journal of Paleontology 60(4):851-864 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 177611: authorized by Pete Wagner, entered by Pete Wagner on 06.04.2016, edited by Jonathan Marcot and Austin Hendy

Creative Commons license: CC BY (attribution)

Taxonomic list

• Specimens at CSUN.
Show authors, comments, and common names
Anthozoa
 Scleractinia - Astrocoeniidae
Astrocoenia dilloni2
Astrocoenia dilloni2 Durham 1942 stony coral
Bivalvia
 Carditida - Carditidae
Glyptoactis sp.2, "Glyptoactis mcmasteri" = Glyptoactis (Claibornicardia) sandiegoensis, Venericardia (Pacificor) sp.2
Glyptoactis sp.2 Stewart 1930 clam
"Glyptoactis n. sp.?"
"Glyptoactis mcmasteri" = Glyptoactis (Claibornicardia) sandiegoensis Hanna 1927 clam
Venericardia (Pacificor) sp.2 Verástegui 1953 clam
 Pholadida - Corbulidae
Corbula (Caryocorbula) cf. dickersoni2
Corbula (Caryocorbula) cf. dickersoni2 Weaver and Palmer 1922 clam
 Cardiida - Glossidae
"Glossus (Meiocardia) susukii n. sp." = Meiocardia susukii
"Glossus (Meiocardia) susukii n. sp." = Meiocardia susukii Squires and Advocate 1986 clam
 Arcida - Glycymerididae
Glycymeris (Glycymerita) ? sagittata2
 Pectinida - Pectinoidae
Spondylus cf. carlosensis2
Spondylus cf. carlosensis2 Anderson 1905 scallop
 Ostreida - Ostreidae
"? Odontogryphaea haleyi" = Phygraea haleyi
"? Odontogryphaea haleyi" = Phygraea haleyi Hertlein 1933 oyster
Gastropoda
 Opisthobranchia - Retusidae
Cylichnina tantilla2
Cylichnina tantilla2 Anderson and Hanna 1925 snail
 Neritoidea - Neritidae
Otostoma bisculptata3
Otostoma bisculptata3 Hanna 1927 oreodont
 Architaenioglossa - Ampullinidae
Eocernina hannibali2
Eocernina hannibali2 Dickerson 1914 snail
 Cerithioidea - Cerithiidae
Bittium cf. preussi2
Bittium cf. preussi2 Hanna 1924 cerith snail
 Cerithioidea - Turritellidae
Turritella uvasana2, Turritella buwaldana2
Turritella uvasana2 Conrad 1855 turret shell
"Turritella uvasana hendoni"
Turritella buwaldana2 Dickerson 1916 turret shell
 Sorbeoconcha - Cassidae
Galeodea sutterensis1
Galeodea sutterensis1 Dickerson 1916 snail
Galeodea sp. cf. G. sutterensis Dickerson. Crowell & Susuki, 1959, p. 588, PI. 2, figs. 1, 4
 Sorbeoconcha - Ficidae
Ficopsis remondii2
Ficopsis remondii2 Gabb 1864 fig shell
"Ficopsis remondii crescentensis?"
 Sorbeoconcha - Eocypraeidae
"? Eocypraea maniobraensis n. sp." = Luponovula maniobraensis
"? Eocypraea maniobraensis n. sp." = Luponovula maniobraensis Squires and Advocate 1986 snail
 Sorbeoconcha - Strombidae
Ectinochilus (Vaderos) elongatus2
Ectinochilus (Vaderos) elongatus2 Weaver 1912 true conch
misspelled as "Ectinochilus (Voderos) elongata"
 Sorbeoconcha - Rostellariidae
Chedevillia saltonensis n. sp.
Chedevillia saltonensis n. sp. Squires and Advocate 1986 snail
Chedevillia sp. cf. C. stewarti Clark. Crowell & Susuki, 1959, P1. 2, figs. 2, 3.
 Neogastropoda - Volutidae
Volutilithes orocopiaensis n. sp.
Volutilithes orocopiaensis n. sp. Squires and Advocate 1986 volute
 Neogastropoda - Conidae
Conus hornii2
Conus hornii2 Gabb 1864 cone shell
"Conus hornii umpquaensis"
 Neogastropoda - Clathurellidae
aff. Domenginella claytonensis2
 Neogastropoda - Turridae
Pleurofusia fresnoensis2
Pleurofusia fresnoensis2 Arnold 1909 turrid
 Sorbeoconcha - Perissityidae
Clavilithes tabulatus2
Clavilithes tabulatus2 Dickerson 1913 true whelk
 Caenogastropoda - Fasciolariidae
aff. Cerithiopsis llajasensis2, Amaurellina caleocia2
aff. Cerithiopsis llajasensis2 Squires 1984 snail
Amaurellina caleocia2 Vokes 1939 moon snail
 Trochoidea - Turbinidae
Arene mcleani2
Arene mcleani2 Squires 1988 snail
Polychaeta
 Sabellida - Serpulidae
Rotularia sp.2
Rotularia sp.2
"Rotularia n. sp.?"
Rhynchonellata
 Terebratulida -
Eogryphus cf. tolmani
Eogryphus cf. tolmani Hertlein and Grant IV 1944
 Terebratulida - Kingenidae
Kingena simiensis
Kingena simiensis Waring 1917
1Hendy 2020; 2Squires 1991; 3Squires 1995