Second St & Hilltop Quarry - calcareous beds [Lomita Marl]: Middle Pleistocene, California
collected by W. Woodring
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Polychaeta
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Spiroglyphus lituella
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Bivalvia
- Nuculanida
- Yoldiidae
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Yoldia scissurata
Dall 1897
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| synonym of Yoldia (Cnesterium) aeolica | ||||||||||
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Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana minuta
(Müller 1776)
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| SUBSPECIES: Nuculana minuta praecursor | ||||||||||
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Nuculana taphria
(Dall 1896)
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| recombined as Saccella taphria | ||||||||||
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Bivalvia
- Nuculida
- Nuculidae
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Acila castrensis
(Hinds 1843)
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| recombined as Acila (Truncacila) castrensis | ||||||||||
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Bivalvia
- Lucinida
- Thyasiridae
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Thyasira gouldi
(Philippi 1845)
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| synonym of Tellina flexuosa | ||||||||||
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Axinopsis viridis
Dall 1901
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| synonym of Axinopsida serricata | ||||||||||
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Bivalvia
- Lucinida
- Lucinidae
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Parvilucina tenuisculpta
(Carpenter 1864)
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Lucinoma annulata
(Reeve 1850)
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| recombined as Lucinoma annulatum | ||||||||||
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Epilucina californica
(Conrad 1837)
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| original and current combination Phacoides californicus | ||||||||||
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Bivalvia
- Cardiida
- Semelidae
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Semele incongrua
Carpenter 1864
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| synonym of Semele (Amphidesma) venusta | ||||||||||
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Bivalvia
- Cardiida
- Tellinidae
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Macoma calcarea
(Gmelin 1792)
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| recombined as Macoma (Macoma) calcarea | ||||||||||
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Tellina buttoni
(Dall 1900)
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| original and current combination Tellina (Angulus) buttoni | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Clinocardium nuttalli
(Conrad 1837)
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| recombined as Clinocardium (Clinocardium) nuttallii | ||||||||||
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Nemocardium centifilosum
(Carpenter 1864)
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| recombined as Nemocardium (Keenaea) centifilosum | ||||||||||
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Trachycardium quadragenarium
(Conrad 1837)
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| recombined as Dallocardia quadragenarium | ||||||||||
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Bivalvia
- Cardiida
- Veneridae
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Humilaria perlaminosa
(Conrad 1855)
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Saxidomus nuttalli
Conrad 1837
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Psephidia ovalis
Dall 1902
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| recombined as Nutricola ovalis | ||||||||||
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Bivalvia
- Cardiida
- Chamidae
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Pseudochama exogyra
(Conrad 1837)
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| original and current combination Chama exogyra | ||||||||||
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Bivalvia
- Cardiida
- Ungulinidae
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Taras orbellus
(Gould 1851)
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| recombined as Diplodonta orbella | ||||||||||
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Bivalvia
- Solenida
- Solenidae
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Solen sicarius
Gould 1850
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Bivalvia
- Hiatellida
- Hiatellidae
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Panope generosa
(Gould 1850)
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| original and current combination Panopea generosa | ||||||||||
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Bivalvia
- Poromyida
- Verticordiidae
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Verticordia ornata
(d'Orbigny 1842)
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| original and current combination Trigonulina ornata | ||||||||||
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Bivalvia
- Poromyida
- Cuspidariidae
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Cardiomya pectinata
(Carpenter 1864)
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Bivalvia
- Carditida
- Carditidae
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Cyclocardia sp.
Conrad 1867
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Bivalvia
- Pectinida
- Pectinidae
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Pecten stearnsi
(Dall 1878)
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| recombined as Leopecten stearnsii | ||||||||||
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Chlamys hastatus
(Sowerby 1842)
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| recombined as Chlamys hastata | ||||||||||
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Chlamys islandicus
(Müller 1776)
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| SUBSPECIES: Chlamys islandicus hindsi | ||||||||||
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= Chlamys rubida
Hinds 1845
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Hendy 2020 | |||||||||
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Bivalvia
- Pectinida
- Anomiidae
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Pododesmus macrochisma
(Deshayes 1839)
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| recombined as Pododesmus (Monia) macrochisma | ||||||||||
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Bivalvia
- Mytilida
- Crenellidae
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Crenella columbiana
Dall 1897
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| recombined as Solamen columbianum | ||||||||||
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Gastropoda
- Opisthobranchia
- Cylichnidae
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Acteocina culcitella
(Gould 1853)
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Coleophysis harpa
(Dall 1871)
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| recombined as Acteocina harpa | ||||||||||
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Gastropoda
- Patellida
- Lottiidae
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Acmaea insessa
(Hinds 1842)
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| recombined as Lottia insessa | ||||||||||
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Gastropoda
- Phasianellidae
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Tricolia pulloides
(Carpenter 1865)
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| recombined as Eulithidium pulloides | ||||||||||
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Gastropoda
- Turbinidae
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Pachypoma gibberosum
(Dillwyn 1817)
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| recombined as Pomaulax gibberosa | ||||||||||
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Homalopoma carpenteri
(Pilsbry 1889)
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| synonym of Homalopoma (Homalopoma) luridum | ||||||||||
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Homalopoma bacula
(Carpenter 1864)
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| recombined as Homalopoma (Homalopoma) baculum | ||||||||||
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Pupillaria pupilla
(Gould 1849)
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Gastropoda
- Trochidae
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Calliostoma sp.
Swainson 1840
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Calliostoma doliarium
(Chemnitz 1788)
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| synonym of Calliostoma canaliculatum | ||||||||||
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Calliostoma ligatum
(Gould 1849)
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| recombined as Calliostoma ligatus | ||||||||||
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Pupillaria optabilis
(Carpenter 1864)
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| recombined as Lirularia optabilis | ||||||||||
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Tegula montereyi
(Kiener 1850)
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| recombined as Chlorostoma montereyi | ||||||||||
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Gastropoda
- Lepetellida
- Fissurellidae
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Puncturella galeata
(Gould 1846)
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Gastropoda
- Pseudomelaniidae
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Antiplanes perversa
(Gabb 1865)
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| recombined as Spirotropis (Antiplanes) perversa | ||||||||||
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Gastropoda
- Barleeiidae
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Rissoina coronadoensis
(Bartsch 1920)
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| original and current combination Barleeia coronadoensis | ||||||||||
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Barleeia haliotiphila
Carpenter 1864
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Diala marmorea
Carpenter 1864
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| synonym of Pseudodiala acuta | ||||||||||
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Gastropoda
- Naticidae
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Natica clausa
Broderip and Sowerby 1829
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| synonym of Cryptonatica affinis | ||||||||||
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Euspira lewisi
(Gould 1847)
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| recombined as Euspira lewisii | ||||||||||
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Neverita reclusiana
(Deshayes 1839)
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| recombined as Glossaulax reclusiana | ||||||||||
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Gastropoda
- Ranellidae
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Fusitriton oregonensis
(Redfield 1846)
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Gastropoda
- Neogastropoda
- Mitridae
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Mitra idae
Melville 1893
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| recombined as Mitra (Atrimitra) idae | ||||||||||
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Gastropoda
- Neogastropoda
- Muricidae
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Ocinebra barbarensis
(Gabb 1865)
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| recombined as Paciocinebrina barbarensis | ||||||||||
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Boreotrophon pedroensis
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| SUBSPECIES: Boreotrophon pedroensis praecursor | ||||||||||
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= Boreotrophon pedroanus
Arnold 1903
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Hendy 2020 | |||||||||
| recombined as Boreotrophon pedroana | ||||||||||
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Boreotrophon stuarti
(Smith 1880)
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Gastropoda
- Neogastropoda
- Cystiscidae
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Cypraeolina pyriformis
(Carpenter 1864)
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| synonym of Granulina margaritula | ||||||||||
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Gastropoda
- Neogastropoda
- Clathurellidae
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Clathurella crystallina
Gabb 1865
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| recombined as Crockerella crystallina | ||||||||||
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Gastropoda
- Neogastropoda
- Turridae
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Taranis strongi
(Arnold 1903)
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| original and current combination Mangilia (Taranis) strongi | ||||||||||
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Gastropoda
- Neogastropoda
- Pseudomelatomidae
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Pseudomelatoma moesta
(Carpenter 1863)
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| recombined as Pseudomelatoma penicillata moesta | ||||||||||
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Gastropoda
- Neogastropoda
- Borsoniidae
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Borsonia bartschi
(Arnold 1903)
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| recombined as Borsonella bartschi | ||||||||||
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Gastropoda
- Neogastropoda
- Mangeliidae
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"Mangelia" cetolaca
Dall 1908
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| synonym of Mangilia oldroydi | ||||||||||
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Gastropoda
- Neogastropoda
- Conidae
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"Lora" tabulata
(Carpenter 1864)
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| recombined as Propebela tabulata | ||||||||||
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"Lora" sp.
Gray 1847
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| replaced by Oenopota | ||||||||||
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Conus californicus
Reeve 1844
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| recombined as Californiconus californicus | ||||||||||
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Gastropoda
- Neogastropoda
- Olividae
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Olivella biplicata
(Sowerby 1825)
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| recombined as Callianax biplicata | ||||||||||
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Olivella pedroana
(Conrad 1855)
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| recombined as Callianax pedroana | ||||||||||
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Gastropoda
- Neogastropoda
- Fasciolariidae
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Barbarofusus barbarensis
(Trask 1855)
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Gastropoda
- Neogastropoda
- Buccinidae
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Neptunea tabulata
(Baird 1863)
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| recombined as Neptunea (Sulcosipho) tabulata | ||||||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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"Nassa" perpinguis
Hinds 1844
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| recombined as Caesia perpinguis | ||||||||||
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"Nassa" mendica
Gould 1849
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| recombined as Hima mendica | ||||||||||
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"Nassa" cooperi
Forbes 1852
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| recombined as Hima cooperi | ||||||||||
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Gastropoda
- Neogastropoda
- Siphonaliidae
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Calicantharus fortis
(Carpenter 1866)
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Gastropoda
- Neogastropoda
- Columbellidae
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Amphissa reticulata
(Dall 1916)
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Mitrella gausapata
(Gould 1850)
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| SUBSPECIES: Mitrella carinata gausapata | ||||||||||
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Mitrella tuberosa
(Carpenter 1864)
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Gastropoda
- Neogastropoda
- Cancellariidae
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Massyla gracilior
(Gabb 1869)
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| recombined as Admete gracilior | ||||||||||
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Gastropoda
- Procerithiidae
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Bittium rugatum
Carpenter 1866
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| recombined as Lirobittium rugatum | ||||||||||
| INCLUDES: Bittium rugatum giganteum | ||||||||||
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Bittium armillatum
Carpenter 1864
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| recombined as Lirobittium armillatum | ||||||||||
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Bittium catalinensis
Bartsch 1907
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| recombined as Lirobittium catalinensis | ||||||||||
| SUBSPECIES: Bittium armillatum catalinensis | ||||||||||
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Bittium asperum
(Gabb 1861)
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| recombined as Lirobittium asperum | ||||||||||
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Gastropoda
- Cerithiidae
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Elassum californicum
(Dall and Bartsch 1901)
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Gastropoda
- Turritellidae
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Turritella pedroensis
Applin 1920
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Turritella cooperi
Carpenter 1864
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula adunca
Sowerby 1824
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Crepidula nummaria
Gould 1846
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Crepipatella lingulata
(Gould 1846)
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium neohexagonum
Sharp and Pilsbry 1897
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Scaphopoda
- Gadilida
- Gadilidae
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Cadulus fusiformis
Pilsbry and Sharp 1898
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| synonym of Gadila aberrans | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California |
| Coordinates: | 33.8° North, 118.3° West (view map) | ||
| Paleocoordinates: | 33.8° North, 118.3° West | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | local area |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| Stage: | Chibanian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Middle Pleistocene | ||
| Age range of interval: | 0.77400 - 0.12900 m.y. ago |
Stratigraphy
| Formation: | Lomita Marl | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: LITHOSTRATIGRAPHY: From the Lomita Marl, which is locally overlain by the Timms Point Silt and San Pedro Sand. AGE: Early Pleistocene in Woodring et al. (1946) and Valentine PhD, but is now regarded as Middle Pleistocene [A. Hendy]. STRATIGRAPHIC POSITION: List is representation of formation at two distinct sections. | |||||
Lithology and environment
| Primary lithology: | unlithified sandy,calcareous marl |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Not listed, but generally a calcareous sandy marl. LITHIFICATION: Not stated, but typically unlithified to slightly poorly-lithified. | |
| Environment: | offshore |
| Geology comments: ENVIRONMENT: Typically containing and offshore fauna. | |
Taphonomy
| Modes of preservation: | body,original aragonite,original calcite |
| Degree of concentration: | -lag |
| Size of fossils: | macrofossils,mesofossils |
| Temporal resolution: | time-averaged |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection excludes: | some genera |
| Collection methods: | surface (float),surface (in situ) |
| Reason for describing collection: | paleoecologic analysis |
| Museum repositories: | LACM |
| Collectors: | W. Woodring |
| Collection method comments: COLLECTOR: W. Woodring, presumably late 1920s. REPOSITORY: Probably at NHMLA. | |
| Taxonomic list comments:COVERAGE: Comprehensive for molluscs, but only including species found in common with Timms Point Silt. NOMENCLATURE: Original identifications by A. Clark and updated by Valentine (1950s). | |
Metadata
| Database number: | 203108 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2019-07-26 14:39:25 | Last modified: | 2021-11-13 22:38:55 |
| Access level: | the public | Released: | 2019-07-26 14:39:25 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 69437. | A. Clark. 1931. The cool-water Timms Point Pleistocene horizon at San Pedro, California. Transactions of the San Diego Society of Natural History 7:25-42 [A. Hendy/A. Hendy] |
Secondary references:
| 78337 | A. Hendy. 2021. A review of the Quaternary Mollusca of the Palos Verdes Peninsula. [A. Hendy/A. Hendy] | |
| 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] |