Where: Los Angeles County, California (33.7° N, 118.3° W: paleocoordinates 33.7° N, 118.3° W)
• coordinate based on political unit
• local area-level geographic resolution
When: Lomita Marl Formation, Middle Pleistocene (0.8 - 0.1 Ma)
• LITHOSTRATIGRAPHY: A composite from the Lomita Marl, which unconformably overlies the Altamira Shale, Valmote Diatomite and Malaga Mudstone, and is overlain by the Timms Point Silt, Sand Pedro Sand, or Palos Verdes Sand. AGE: Middle Pleistocene. STRATIGRAPHIC POSITION: A composite from multiple unspecified collections from the San Pedro Sand so assigned a formation stratigraphic resolution.
• formation-level stratigraphic resolution
Environment/lithology: offshore; poorly lithified, calcareous marl
Size classes: macrofossils, mesofossils
Preservation: original aragonite, original calcite
Collection methods: COLLECTOR: unknown, possible multiple collectors. REPOSITORY: unknown, possible multiple repositories.
Primary reference: U.S. Grant IV. 1936. Summary of the marine Pleistocene of California. Geolological Society of America Proceedings for 1935 349-350 [A. Hendy/A. Hendy]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 223525: authorized by Austin Hendy, entered by Austin Hendy on 15.11.2021
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Gastropoda | |
"Acmaea lepisma" = Lottia depicta2, "Acmaea insessa" = Lottia insessa2, "Acmaea limatula" = Lottia limatula2, Acmaea ocharacea2, Acmaea funiculata2
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"Tegula montereyi" = Chlorostoma montereyi2, "Pupillaria optabilis" = Lirularia optabilis2, Calliostoma annulatum2, Calliostoma ligatum2, "Calliostoma doliarium" = Calliostoma canaliculatum2
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"Homalopoma bacula" = Homalopoma (Homalopoma) baculum2, "Homalopoma subobsoletum" = Homalopoma (Homalopoma) subobsoletum2, Homalopoma paucicostatum2, "Pupillaria sp." = Margarites (Pupillaria)2
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"Micranellum crebricinctum" = Caecum crebricinctum2, "Caecum grippi" = Caecum quadratum2, Caecum californicum2
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"Cerithiopsis cosmia" = Cerithiopsidella cosmia2
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"Cerithiopsis necropolitana" = Cerithiopsida necropolitana2
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"Triphora pedroana" = Monophorus pedroanus2
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""Nassa" perpinguis" = Caesia perpinguis2, ""Nassa" mendica" = Hima mendica2, ""Nassa" cooperi" = Hima cooperi2
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"Ocinebra interfossa" = Paciocinebrina interfossa2, "Ocinebra foveolata" = Paciocinebrina foveolata2, "Ocinebra munda" = Ocenebra2, Ceratostoma nuttalli2, Boreotrophon stuarti2, Boreotrophon pacificus2, Boreotrophon multicostatus2, "Boreotrophon pedroanus" = Boreotrophon pedroana2
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"Hyalina californica" = Volvarina taeniolata2
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"Conus californicus" = Californiconus californicus2
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"Bittium attenuatum" = Lirobittium attenuatum2, "Bittium asperum" = Lirobittium asperum2, "Bittium interfossum" = Lirobittium interfossum2, "Bittium armillatum" = Lirobittium armillatum2
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Calyptraea fastigiata2, Crepidula onyx2, Crepidula nummaria2, Crepidula adunca2, Crepipatella charybdis1, Crepipatella lingulata2
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"Iselica fenestrata" = Iselica ovoidea2
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Bivalvia | |
"Glans subquadrata" = Glans carpenteri2
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"Lucinoma annulata" = Lucinoma annulatum2
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"Trachycardium quadrigenarium" = Dallocardia quadragenarium2
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"Antigona fordi" = Globivenus fordii
"Antigona fordi" = Globivenus fordii Yates 1890 venus clam | |
"Pecten bellus" = Euvola bella Conrad 1856 scallop | |
"Pododesmus macrochisma" = Pododesmus (Monia) macrochisma2
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"Acila castrensis" = Acila (Truncacila) castrensis2
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