Where: Fresno County, California (36.4° N, 120.4° W: paleocoordinates 39.0° N, 103.3° W)
• coordinate estimated from map
• outcrop-level geographic resolution
When: Cerros Shale Member (Lodo Formation), Ypresian (56.0 - 47.8 Ma)
• 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).
• group of beds-level stratigraphic resolution
Environment/lithology: deep-water; lithified shale
Size class: macrofossils
Reposited in the UCMP
Primary reference: 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]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 122294: authorized by Wolfgang Kiessling, entered by Uta Merkel on 21.12.2011, edited by Patricia Holroyd, Matthew Clapham, Jonathan Marcot, Mark Uhen and Austin Hendy
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Anthozoa | |
Turbinolia dickersoni n. sp. Nomland 1916 stony coral
Turbinolia pusillanima Nomland 1916 stony coral | |
"? Flabellum merriami n. sp." = Platytrochus merriami, Trochocyathus imperialis n. sp.
"? Flabellum merriami n. sp." = Platytrochus merriami Nomland 1916 stony coral
Trochocyathus imperialis n. sp. Nomland 1916 stony coral | |
Cephalopoda | |
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Gastropoda | |
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Calliovarica eocensis n. sp.4
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Melanella coalingana n. sp.8
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"Rimella (Macilentos) macilenta" = Rimella macilenta8
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Metula harrisi n. sp.2
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"Fusiturricula (Crenaturricula) crenatospira" = Crenaturricula crenatospira8, "Turricula holwayi" = Surcula holwayi8
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Conus hornii Gabb 1864 cone shell | |
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"Cancellaria stantoni" = Bonellitia (Admetula) paucivaricata
"Cancellaria stantoni" = Bonellitia (Admetula) paucivaricata Gabb 1864 snail | |
Ficopsis remondii Gabb 1864 fig shell | |
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Polinices (Euspira) nuciformis8, "Natica gesteri n. sp." = Polinices (Euspira) gesteri2, "Amaurellina hendoni" = Tejonia moragai8, Sinum obliquum8
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Bivalvia | |
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"Arca hornii" = Pachecoa hornii2
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"Glycymeris sagittata" = Glycymeris (Glycymerita) sagittata8, "Glycimeris fresnoensis n. sp." = Glycymeris (Tucetona) fresnoensis2, "Glycymeris perrini" = Glycymeris (Tucetona) perrini8
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"Propeamussium mideocenicum n. sp." = Parvamussium mideocenicum8
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? Vulsella clarki n. sp.8
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"? Lucina bramkampi n. sp." = Lucina (Lucina) bramkampi8
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"Corbula parilis" = Caryocorbula parilis2, "Corbula (Varicorbula) capayana n. sp." = Varicorbula capayana8, Corbula rosecanyonensis8
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"Isocardium tejonensis" = Nitidavenus tejonensis2, "? Marcia conradi n. sp." = Nitidavenus conradi2, "Macrocallista (Costacallista) domenginica" = Callista (Macrocallista) domenginica8, "Macrocallista (Costacallista) domenginica" = Callista (Macrocallista) domenginica8
"Macrocallista (Costacallista) domenginica" = Callista (Macrocallista) domenginica8 Vokes 1939 venus clam subspecies new capayana
"Macrocallista (Costacallista) domenginica" = Callista (Macrocallista) domenginica8 Vokes 1939 venus clam | |
"Spisula capayana n. sp." = Mactromeris capayana8
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"Nemocardium linteum" = Nemocardium (Nemocardium) linteum8, "Cardium brewerii" = Schedocardia brewerii2
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"Gari hornii" = Gari (Gobraeus) hornii8
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"Crassatellites lillisi n. sp." = Crassatella lillisi2
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"Acila (Truncacila) decisa" = Acila (Truncacila) decisa8, "Acila gabbiana n. sp." = Acila (Truncacila) decisa2, "Nucula cooperi" = Nucula (Nucula) cooperi8
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Nuculana (Saccella) hondana n. sp.8, "Leda fresnoensis n. sp." = Ledina fresnoensis2, "Jupiteria (Ledina) duttonae" = Ledina duttonae6
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Scaphopoda | |
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Malacostraca | |
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