CSUN 674: Ypresian, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Ampullinidae
Pachycrommium clarki (Stewart 1927)
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea dieaoana
Gastropoda - Turritellidae
Turritella buwaldana Dickerson 1916
Turritella andersoni Dickerson 1916
Gastropoda - Neogastropoda - Pseudolividae
Calorebama dilleri (Dickerson 1914)
Squires 1989
as "Caloreabama dilleri lineata"
Gastropoda - Neogastropoda - Muricidae
? Favartia sp. Jousseaume 1880
Gastropoda - Neogastropoda - Conidae
Conus hornii Gabb 1864
"Conus hornii umpquaensis"
Gastropoda - Turbinidae
aff. Homalopoma wattsi (Dickerson 1916)
Gastropoda - Opisthobranchia - Retusidae
Cylichnina tantilla (Anderson and Hanna 1925)
Bivalvia - Nuculida - Nuculidae
Acila (Truncacila) decisa (Conrad 1855)
Bivalvia - Cardiida - Glossidae
Glossus (Meiocardia) susukii Squires and Advocate 1986
recombined as Meiocardia susukii
Bivalvia - Cardiida - Veneridae
Pitar (Lamelliconcha) joaquinensis Vokes 1939
Callista (Costacallista) hornii (Gabb 1864)
"Callista (Costacallista) hornii vokesi"
Bivalvia - Cardiida - Cardiidae
Acanthocardia (Schedocardia) brewerii (Gabb 1864)
recombined as Schedocardia brewerii
Bivalvia - Carditida - Carditidae
Venericardia (Pacificor) sp. Verástegui 1953
Glyptoactis (Claibornicardia) domenginica (Vokes 1939)
Bivalvia - Pectinida - Spondylidae
Spondylus cf. carlosensis Anderson 1905
Bivalvia - Arcida - Glycymerididae
Glycymeris (Glycymerita) ? sagittata (Gabb 1864)
recombined as Glycymerita sagittata
Anthozoa - Scleractinia - Turbinoliidae
Turbinolia dickersoni Nomland 1916
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, 98.6° West
Basis of coordinate:estimated from map
Altitude:2120 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:group of beds
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:submarine fan
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:LACMIP 16082
Database number:193545
Authorizer:J. Marcot Enterer:J. Marcot
Research group:marine invertebrate
Created:2018-05-26 17:17:24 Last modified:2018-05-26 17:17:24
Access level:the public Released:2018-05-26 17:17:24
Creative Commons license:CC BY
Reference information

Primary reference:
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]

Secondary references:

72738 R. L. Squires. 1989. A new pseudolivine gastropod genus from the lower Tertiary of North America. Journal of Paleontology 63(1):38-47 [J. Marcot/J. Marcot]