CSUN 662, Orocopia Mountains: Ypresian, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polychaeta - Sabellida - Serpulidae
Rotularia sp.
Squires 1991
"Rotularia n. sp.?"
Gastropoda - Ampullinidae
Eocernina hannibali (Dickerson 1914)
Squires 1991
Gastropoda - Cerithiidae
Bittium cf. preussi (Hanna 1924)
Squires 1991
Gastropoda - Turritellidae
Turritella buwaldana Dickerson 1916
Squires 1991
Turritella uvasana Conrad 1855
Squires 1991
"Turritella uvasana hendoni"
Gastropoda - Naticidae
Amaurellina caleocia Vokes 1939
Squires 1991
Gastropoda - Cerithiopsidae
aff. Cerithiopsis llajasensis Squires 1984
Squires 1991
Gastropoda - Cassidae
Galeodea gallica n. sp. Wrigley 1934
Galeodea sp. cf. G. sutterensis Dickerson. Crowell & Susuki, 1959, p. 588, PI. 2, figs. 1, 4
    = Galeodea louella Squires and Advocate 1986
Squires 2019
    = Galeodea sutterensis Dickerson 1916
Hendy 2020
Gastropoda - Eocypraeidae
? Eocypraea maniobraensis n. sp. Squires and Advocate 1986
recombined as Luponovula maniobraensis
Gastropoda - Ficidae
Ficopsis remondii (Gabb 1864)
Squires 1991
recombined as Ficus remondii
"Ficopsis remondii crescentensis?"
Gastropoda - Neogastropoda - Fasciolariidae
Clavilithes tabulatus (Dickerson 1913)
Squires 1991
Gastropoda - Neogastropoda - Volutidae
Volutilithes orocopiaensis n. sp. Squires and Advocate 1986
Gastropoda - Neogastropoda - Conidae
Conus hornii Gabb 1864
Squires 1991
"Conus hornii umpquaensis"
Gastropoda - Neogastropoda - Turridae
Pleurofusia fresnoensis (Arnold 1909)
Squires 1991
Gastropoda - Neogastropoda - Clathurellidae
aff. Domenginella claytonensis (Gabb 1864)
Squires 1991
Gastropoda - Rostellariidae
Chedevillia saltonensis n. sp. Squires and Advocate 1986
Chedevillia sp. cf. C. stewarti Clark. Crowell & Susuki, 1959, P1. 2, figs. 2, 3.
Gastropoda - Strombidae
Ectinochilus (Vaderos) elongatus (Weaver 1912)
Squires 1991
misspelled as "Ectinochilus (Voderos) elongata"
Gastropoda - Turbinidae
Arene mcleani Squires 1988
Squires 1991
Gastropoda - Opisthobranchia - Retusidae
Cylichnina tantilla (Anderson and Hanna 1925)
Squires 1991
Gastropoda - Neritidae
Otostoma bisculptata (Hanna 1927)
Squires 1995
Bivalvia - Pholadida - Corbulidae
Corbula (Caryocorbula) cf. dickersoni (Weaver and Palmer 1922)
Squires 1991
Bivalvia - Cardiida - Glossidae
Glossus (Meiocardia) susukii n. sp. Squires and Advocate 1986
recombined as Meiocardia susukii
Bivalvia - Carditida - Carditidae
Venericardia (Pacificor) sp. Verástegui 1953
Squires 1991
Glyptoactis sp. (Stewart 1930)
Squires 1991
"Glyptoactis n. sp.?"
Glyptoactis mcmasteri (Verástegui 1953)
synonym of Glyptoactis (Claibornicardia) sandiegoensis
Bivalvia - Pectinida - Spondylidae
Spondylus cf. carlosensis Anderson 1905
Squires 1991
Bivalvia - Ostreida - Gryphaeidae
? Odontogryphaea haleyi (Hertlein 1933)
recombined as Phygraea haleyi
Bivalvia - Arcida - Glycymerididae
Glycymeris (Glycymerita) ? sagittata (Gabb 1864)
Squires 1991
recombined as Glycymerita sagittata
Rhynchonellata - Terebratulida
Eogryphus cf. tolmani Hertlein and Grant IV 1944
Rhynchonellata - Terebratulida - Kingenidae
Kingena simiensis Waring 1917
Anthozoa - Scleractinia - Astrocoeniidae
Astrocoenia dilloni Durham 1942
Squires 1991
see common names

Geography
Country:United States State/province:California County:Riverside
Coordinates: 33.6° North, 115.7° West (view map)
Paleocoordinates:36.0° North, 98.7° West
Basis of coordinate:estimated from map
Altitude:2190 feet
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
Key time interval:Ypresian Foram zone: P7 - P8
Age range of interval:56.00000 - 47.80000 m.y. ago
Stratigraphy
Formation:Maniobra
Regional section:Formation Regional bed:57 m
Regional order:bottom to top
Stratigraphic resolution:bed
Stratigraphy comments: 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).
Lithology and environment
Primary lithology: "shale"
Lithology description: consists of siliciclastics that locally contain some macrofossils and microfossils.
Environment:offshore
Geology comments: These deposits represent a transitional marginal marine to deep-water submarine-fan sequence deposited in subtropical waters (Advocate, 1983).
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:taxonomic analysis
Taxonomic list comments:Specimens at CSUN.
Metadata
Also known as:UCLA loc. 3779; Locality F of Crowell and Susuki (1959); LACMIP loc. 23779; LACMIP loc. 40662
Database number:177611
Authorizer:P. Wagner, A. Hendy, J. Marcot Enterer:P. Wagner, A. Hendy, J. Marcot
Modifier:J. Marcot Research group:marine invertebrate
Created:2016-04-06 20:25:08 Last modified:2023-11-28 12:00:54
Access level:the public Released:2016-04-06 20:25:08
Creative Commons license:CC BY
Reference information

Primary reference:
58754. 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]

Secondary references:

63217 A. J. W. Hendy. 2020. Unpublished taxonomic backbone for Eastern Pacific Invertebrate Communities of the Cenozoic (EPICC) Thematic Collections Network. [A. Hendy/A. Hendy/A. Hendy]
65757 R. L. Squires. 1991. Molluscan Paleontology of the Lower Eocene Maniobra Formation, Orocopia Mountains, Southern California. Eocene Geologic History San Diego Region, Pacific Section SEPM 68:217-226 [J. Marcot/J. Marcot]
72892 R. L. Squires. 1995. The gastropod Philine bisculptata Hanna, 1927, from the Eocene of Southern California, belongs in the neritid genus Otostoma d'Archiac, 1859. The Veliger 38(2):176-180 [J. Marcot/J. Marcot]
68679 R. L. Squires. 2019. Revision of Eocene warm-water cassid gastropods from coastal southwestern North America: implications for paleobiogeographic distribution and faunal-turnover. PaleoBios 36:1-22 [P. Holroyd/P. Holroyd]