UCMP 1817, Urruttia Canyon-Salt Creek: Ypresian, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Nummuloid sp.
Dickerson 1916
Anthozoa - Scleractinia - Turbinoliidae
Turbinolia dickersoni n. sp. Nomland 1916
Turbinolia pusillanima Nomland 1916
Anthozoa - Scleractinia - Caryophylliidae
Trochocyathus imperialis n. sp. Nomland 1916
? Flabellum merriami n. sp. Nomland 1916
recombined as Platytrochus merriami
Malacostraca - Decapoda - Cancridae
? Cancer sp. Linnaeus 1758
Dickerson 1916
Bivalvia - Nuculanida - Nuculanidae
Nuculana (Saccella) hondana n. sp. Vokes 1939
Vokes 1939
Leda fresnoensis n. sp. Dickerson 1916
Dickerson 1916
recombined as Ledina fresnoensis
Jupiteria (Ledina) duttonae Vokes 1939
Squires 1988
recombined as Ledina duttonae
Bivalvia - Nuculida - Nuculidae
Acila (Truncacila) decisa (Conrad 1855)
Vokes 1939
Acila gabbiana n. sp. Dickerson 1916
Dickerson 1916
synonym of Acila (Truncacila) decisa
Nucula cooperi Dickerson 1913
Vokes 1939
recombined as Nucula (Nucula) cooperi
Bivalvia - Mytilida - Mytilidae
Brachidontes cf. cowlitzensis (Weaver and Palmer 1922)
Vokes 1939
Bivalvia - Ostreida - Malleidae
Ostrea sp. Linnaeus 1758
Dickerson 1916
    = ? Vulsella clarki n. sp. Vokes 1939
Vokes 1939
Bivalvia - Pectinida - Propeamussiidae
Pecten cf. interradiatus Gabb 1869
Dickerson 1916
    = Propeamussium mideocenicum n. sp. Vokes 1939
Vokes 1939
recombined as Parvamussium mideocenicum
Bivalvia - Arcida - Glycymerididae
Glycimeris fresnoensis n. sp. Dickerson 1916
Dickerson 1916
recombined as Glycymeris (Tucetona) fresnoensis
Glycymeris perrini (Dickerson 1916)
Vokes 1939
recombined as Glycymeris (Tucetona) perrini
subspecies instabilis
Glycymeris sagittata (Gabb 1864)
Vokes 1939
recombined as Glycymerita sagittata
Bivalvia - Arcida - Parallelodontidae
Porterius woodfordi (Hanna 1927)
Vokes 1939
Bivalvia - Arcida - Arcidae
Arca hornii Gabb 1864
Dickerson 1916
recombined as Pachecoa hornii
Bivalvia - Carditida - Carditidae
Venericardia planicosta Lamarck 1801
subsp. hornii
    = Megacardita sp. Sacco 1899
Vokes 1939
    = Venericardia (Pacificor) hornii Gabb 1864
Hendy 2020
Bivalvia - Carditida - Crassatellidae
Crassatellites lillisi n. sp. Dickerson 1916
Dickerson 1916
recombined as Crassatella lillisi
Bivalvia - Poromyida - Cuspidariidae
Cardiomya informal n. sp.
Vokes 1939
Bivalvia - Cardiida - Cardiidae
Cardium brewerii Gabb 1864
Dickerson 1916
recombined as Schedocardia brewerii
subspecies hartleyense
Cardium cooperii Gabb 1864
Dickerson 1916
    = Nemocardium linteum Conrad 1855
Vokes 1939
recombined as Nemocardium (Nemocardium) linteum
Bivalvia - Cardiida - Psammobiidae
Gari hornii (Gabb 1864)
Vokes 1939
recombined as Gari (Gobraeus) hornii
subspecies umpquaensis
Bivalvia - Cardiida - Mactridae
? Spisula sp. Gray 1837
Dickerson 1916
    = Spisula capayana n. sp. Vokes 1939
Vokes 1939
recombined as Mactromeris capayana
Bivalvia - Cardiida - Veneridae
Macrocallista (Costacallista) domenginica Vokes 1939
Vokes 1939
recombined as Callista (Macrocallista) domenginica
subspecies new capayana
Meretrix hornii Gabb 1864
Dickerson 1916
    = Macrocallista (Costacallista) domenginica Vokes 1939
Vokes 1939
recombined as Callista (Macrocallista) domenginica
as "Macrocallista (Costacallista) domenginica capayana n. ssp."
? Marcia conradi n. sp. Dickerson 1916
Dickerson 1916
recombined as Nitidavenus conradi
Isocardium tejonensis (Waring 1914)
Dickerson 1916
recombined as Nitidavenus tejonensis
Bivalvia - Pholadida - Corbulidae
Corbula (Varicorbula) capayana n. sp. Vokes 1939
Vokes 1939
recombined as Varicorbula capayana
Corbula rosecanyonensis Hanna 1927
Vokes 1939
Corbula parilis Gabb 1864
Dickerson 1916
recombined as Caryocorbula parilis
Bivalvia - Lucinida - Lucinidae
? Lucina sp. Bruguière 1797
Dickerson 1916
    = ? Lucina bramkampi n. sp. Vokes 1939
Vokes 1939
recombined as Lucina (Lucina) bramkampi
Scaphopoda - Gadilida - Gadilidae
Cadulus pusillus (Gabb 1864)
Dickerson 1916
    = ? Cadulus informal n. sp.
Vokes 1939
Scaphopoda - Dentaliida - Dentaliidae
Dentalium (Laevidentalium) lighti n. sp. Vokes 1939
Vokes 1939
Gastropoda - Opisthobranchia - Philinidae
Megistostoma gabbianum (Stoliczka 1868)
Vokes 1939
Gastropoda - Heterostropha - Acteonidae
Tornatellaea informal n. sp.
Vokes 1939
Tornatellaea effingeri n. sp. Vokes 1939
Vokes 1939
Gastropoda - Heterostropha - Pyramidellidae
Odostomia packi Dickerson 1916
Dickerson 1916
    = Pyramidella cf. etheringtoni Hanna 1927
Vokes 1939
Gastropoda - Neotaenioglossa - Calyptraeidae
Calyptraea diegoana (Conrad 1855)
Vokes 1939
Gastropoda - Strombidae
Rimella simplex Gabb 1864
    = Rimella (Macilentos) macilenta White 1889
Vokes 1939
original and current combination Rimella macilenta
Gastropoda - Ficidae
Ficopsis remondii (Gabb 1864)
recombined as Ficus remondii
Ficopsis cf. hornii (Gabb 1864)
Dickerson 1916
    = Ficopsis meganosensis Clark and Woodford 1927
Vokes 1939
Gastropoda - Neogastropoda - Ptychatractidae
Exilia cf. perkinsiana (Cooper 1894)
Vokes 1939
    = Exilia taliaferroi Vokes 1939
Bentson 1940
Bentson 1940, p. 208
Gastropoda - Neogastropoda - Muricidae
Pseudoperissolax blakei (Conrad 1855)
Vokes 1939
new subspecies praeblakei
? Muricopsis whitneyi (Gabb 1864)
Vokes 1939
Gastropoda - Neogastropoda - Cancellariidae
Cancellaria stantoni Dickerson 1913
synonym of Bonellitia (Admetula) paucivaricata
Gastropoda - Neogastropoda - Ancillariidae
Ancillaria elongata Gabb 1864
Dickerson 1916
    = Ancilla (Spirancilla) gabbi Cossman 1899
Vokes 1939
Gastropoda - Neogastropoda - Clavatulidae
Turricula holwayi (Dickerson 1913)
Vokes 1939
original and current combination Surcula holwayi
Fusiturricula (Crenaturricula) crenatospira (Cooper 1894)
Vokes 1939
recombined as Crenaturricula crenatospira
Gastropoda - Neogastropoda - Conidae
Conus hornii Gabb 1864
Gastropoda - Neogastropoda - Terebridae
Terebra californica Gabb 1869
    = Terebra informal n. sp.
Vokes 1939
Gastropoda - Neogastropoda - Turridae
Turris fresnoensis
    = Pleurofusia fresnoensis Arnold 1909
Vokes 1939
original and current combination Pleurotoma fresnoensis
Turris monolifera (Cooper 1894)
Dickerson 1916
    = Gemmula wattsi Anderson and Hanna 1925
Vokes 1939
Eosurcula capayana n. sp. Vokes 1939
Vokes 1939
Gastropoda - Neogastropoda - Buccinidae
Metula harrisi n. sp. Dickerson 1916
Dickerson 1916
Gastropoda - Neogastropoda - Fasciolariidae
Turris suturalis (Cooper 1894)
Dickerson 1916
    = Falsifusus marysvillensis Merriam and Turner 1937
Vokes 1939
Gastropoda - Neogastropoda - Mitridae
Mitra simplicissima Cooper 1894
Vokes 1939
Gastropoda - Cassidae
Galeodea sutterensis Dickerson 1916
Vokes 1939
    = Galeodea meganosensis Vokes 1939
Squires 2019
recombined as Galeodea (Gomphopages) meganosensis
Gastropoda - Naticidae
Sinum obliquum (Gabb 1864)
Vokes 1939
original and current combination Naticina obliqua
Amauropsis sp. Mörch 1857
Dickerson 1916
    = Amaurellina hendoni Turner 1938
Vokes 1939
synonym of Amaurellina moragai
Polinices (Euspira) nuciformis (Gabb 1864)
Vokes 1939
Natica gesteri n. sp. Dickerson 1916
Dickerson 1916
recombined as Polinices (Euspira) gesteri
Gastropoda - Eulimidae
Melanella coalingana n. sp. Vokes 1939
Vokes 1939
Gastropoda - Turritellidae
Turritella buwaldana Dickerson 1916
Vokes 1939
subspecies crooki
Turritella andersoni n. sp. Dickerson 1916
Dickerson 1916
Gastropoda - Turbinidae
Homalopoma wattsi (Dickerson 1916)
Vokes 1939
Gastropoda - Chilodontaidae
Calliovarica eocensis n. sp. Vokes 1939
Hickman 2018
Cephalopoda - Nautilida - Aturiidae
Aturia myrlae (Hanna 1927)
Vokes 1939
    = Aturia sp. Bronn 1838
Miller and Downs 1950
see common names

Geography
Country:United States State/province:California County:Fresno
Coordinates: 36.4° North, 120.4° West (view map)
Paleocoordinates:39.0° North, 103.3° West
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period:Paleogene Epoch:Eocene
Stage:Ypresian 10 m.y. bin:Cenozoic 2
Key time interval:Ypresian
Age range of interval:56.00000 - 47.80000 m.y. ago
Stratigraphy
Formation:Lodo Member:Cerros Shale
Stratigraphic resolution:group of beds
Stratigraphy comments: Assigned to the "Arroyo Hondo" formation (lower part of the "Capay Stage") by Vokes (1939) and Miller & Downs (1950), but the Lodo Formation is now used for this unit. Calcareous nannofossils indicate the CP10 (Tribrachiatus orthostylus) zone of early Eocene age and the transition between the CP10-CP11 (Discoaster lodoensis) zones, according to Squires (1988).
Lithology and environment
Primary lithology: lithified "shale"
Environment:deep-water indet.
Geology comments: Foraminifera indicate bathyal depths for the lower part of the Lodo (Stinemeyer, 1974).
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:taxonomic analysis
Museum repositories:UCMP
Metadata
Database number:122294
Authorizer:W. Kiessling, A. Hendy, J. Marcot, P. Holroyd, M. Uhen, M. Clapham Enterer:U. Merkel, J. Marcot, A. Hendy, M. Clapham, M. Uhen, P. Holroyd
Modifier:M. Clapham Research group:marine invertebrate
Created:2011-12-21 01:03:32 Last modified:2019-08-18 20:53:59
Access level:the public Released:2011-12-21 01:03:32
Creative Commons license:CC BY
Reference information

Primary reference:

38924. J. O. Nomland. 1916. Corals from the Cretaceous and Tertiary of California and Oregon. Bulletin of the Department of Geology, University of California Publications 9(5):59-76 [W. Kiessling/U. Merkel]

Secondary references:

75583 H. Bentson. 1940. A systematic study of the fossil gastropod Exilia. University of California Publications Bulletin of the Department of Geological Sciences 25(5):199-238 [J. Marcot/J. Marcot/J. Marcot]
72885 R. E. Dickerson. 1916. Stratigraphy and fauna of the Tejon Eocene of California. University of California Publications Bulletin of the Department of Geology 9(17):363-524 [J. Marcot/J. Marcot]
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]
65476 C. S. Hickman. 2018. A new Calliovarica species (Seguenzioidea: Chilodontidae) from the Eocene of Oregon, USA: Persistence of a relict Mesozoic gastropod group in a unique forearc tectonic setting. PaleoBios 35(38726):1-10 [P. Holroyd/P. Holroyd]
59868 A. K. Miller and H. R. Downs. 1950. Tertiary nautiloids of the Americas: supplement. Journal of Paleontology 24:1-18 [M. Clapham/M. Clapham]
55842 R. L. Squires. 1988. Rediscovery of the type locality of Turritella andersoni and its geologic age implications for West Coast Eocene strata. Pacific Section SEPM 58:203-208 [M. Uhen/M. Uhen/M. Uhen]
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]
14207 H. E. Vokes. 1939. Molluscan faunas of the Domengine and Arroyo Hondo Formations of the California Eocene. Annals of the New York Academy of Sciences 38:1-246 [A. Miller/A. Hendy/P. Holroyd]