Hilltop Quarry of Stanford [Lomita Marl]: Middle Pleistocene, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polyplacophora
- Chitonida
- Callistoplacidae
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Callistochiton palmulatus
Dall 1879
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Gastropoda
- Skeneidae
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Liotia acutecostata
(Carpenter 1864)
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recombined as Parviturbo acuticostatus | ||||||||||
Gastropoda
- Phasianellidae
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Tricolia compta
(Gould 1855)
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recombined as Eulithidium comptum | ||||||||||
Gastropoda
- Turbinidae
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Pupillaria pupilla
(Gould 1849)
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Homalopoma bacula
(Carpenter 1864)
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recombined as Homalopoma (Homalopoma) baculum | ||||||||||
Homalopoma carpenteri
(Pilsbry 1889)
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synonym of Homalopoma (Homalopoma) luridum | ||||||||||
Homalopoma fenestratum
(Dall 1919)
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synonym of Homalopoma (Homalopoma) radiatum | ||||||||||
Homalopoma paucicostatum
(Dall 1871)
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recombined as Homalopoma (Homalopoma) paucicostatum | ||||||||||
Pachypoma gibberosum
(Dillwyn 1817)
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recombined as Pomaulax gibberosa | ||||||||||
Gastropoda
- Trochidae
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Tegula aureotincta
(Forbes 1852)
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recombined as Chlorostoma aureotincta | ||||||||||
Tegula funebralis
(Adams 1855)
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original and current combination Chlorostoma funebrale | ||||||||||
Calliostoma supragranosum
Carpenter 1864
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Calliostoma doliarium
(Chemnitz 1788)
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synonym of Calliostoma canaliculatum | ||||||||||
Halistylus pupoideus
(Carpenter 1864)
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Norrisia norrisi
(Sowerby I 1838)
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recombined as Norrisia norrisii | ||||||||||
Pupillaria parcipicta
(Carpenter 1864)
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recombined as Lirularia parcipicta | ||||||||||
Pupillaria lirulata
(Carpenter 1864)
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recombined as Lirularia lirulata | ||||||||||
Gastropoda
- Lepetellida
- Fissurellidae
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Puncturella cucullata
(Gould 1846)
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recombined as Craniopsis cucullata | ||||||||||
Diodora murina
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= Diodora arnoldi
McLean 1966
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Hendy 2020 | |||||||||
Gastropoda
- Epitoniidae
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Opalia chacei
Strong 1937
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synonym of Opalia borealis | ||||||||||
Gastropoda
- Eulimidae
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Balcis thersites
(Carpenter 1864)
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recombined as Melanella thersites | ||||||||||
Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula nummaria
Gould 1846
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Crepidula adunca
Sowerby 1824
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Crepipatella lingulata
(Gould 1846)
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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 cooperi
Carpenter 1864
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Turritella pedroensis
Applin 1920
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Gastropoda
- Pseudomelaniidae
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Antiplanes perversa
(Gabb 1865)
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recombined as Spirotropis (Antiplanes) perversa | ||||||||||
Gastropoda
- Neogastropoda
- Mitridae
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Mitra catalinae
(Dall 1919)
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recombined as Mitra (Atrimitra) catalinae | ||||||||||
Gastropoda
- Neogastropoda
- Olividae
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Olivella biplicata
(Sowerby 1825)
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recombined as Callianax biplicata | ||||||||||
Gastropoda
- Neogastropoda
- Buccinidae
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Kelletia kelleti
(Forbes 1852)
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recombined as Kelletia kelletii | ||||||||||
Neptunea tabulata
(Baird 1863)
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recombined as Neptunea (Sulcosipho) tabulata | ||||||||||
Exilioidea rectirostris
(Carpenter 1864)
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Gastropoda
- Neogastropoda
- Siphonaliidae
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Calicantharus fortis
(Carpenter 1866)
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Gastropoda
- Neogastropoda
- Nassariidae
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"Nassa" cooperi
Forbes 1852
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recombined as Hima cooperi | ||||||||||
"Nassa" insculpta
Carpenter 1864
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recombined as Hima insculpta | ||||||||||
"Nassa" fossata
(Gould 1849)
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recombined as Caesia fossatus | ||||||||||
"Nassa" perpinguis
Hinds 1844
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recombined as Caesia perpinguis | ||||||||||
Gastropoda
- Neogastropoda
- Columbellidae
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Mitrella tuberosa
(Carpenter 1864)
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Gastropoda
- Neogastropoda
- Conidae
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"Lora" sp.
Gray 1847
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replaced by Oenopota | ||||||||||
Conus californicus
Reeve 1844
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recombined as Californiconus californicus | ||||||||||
Gastropoda
- Neogastropoda
- Pseudomelatomidae
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Pseudomelatoma torosa
(Gabb 1864)
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Pseudomelatoma penicillata
(Carpenter 1864)
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SUBSPECIES: Pseudomelatoma penicillata semiinflata | ||||||||||
Gastropoda
- Neogastropoda
- Clathurellidae
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Clathurella conradiana
Gabb 1866
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recombined as Crockerella conradiana | ||||||||||
Clathurella canfieldi
Dall 1871
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Gastropoda
- Neogastropoda
- Mangeliidae
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"Mangelia" sp.
(Loven 1846)
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corrected as Cythara (Mangelia) | ||||||||||
Gastropoda
- Neogastropoda
- Strictispiridae
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Clavus zizyphus
(Berry 1940)
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recombined as Strictispira zizyphus | ||||||||||
Gastropoda
- Neogastropoda
- Turridae
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Taranis strongi
(Arnold 1903)
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original and current combination Mangilia (Taranis) strongi | ||||||||||
Gastropoda
- Neogastropoda
- Pseudolividae
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Macron aethiops
(Reeve 1847)
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Gastropoda
- Neogastropoda
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Harfordia monksae
(Dall 1915)
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synonym of Harfordia robusta | ||||||||||
Gastropoda
- Neogastropoda
- Cystiscidae
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Cystiscus jewetti
(Carpenter 1857)
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recombined as Plesiocystiscus jewetti | ||||||||||
Cystiscus regularis
(Carpenter 1864)
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= Plesiocystiscus politulus
Dall 1919
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Hendy 2020 | |||||||||
Cypraeolina pyriformis
(Carpenter 1864)
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synonym of Granulina margaritula | ||||||||||
Gastropoda
- Neogastropoda
- Muricidae
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Ceratostoma foliata
(Gmelin 1791)
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recombined as Ceratostoma foliatum | ||||||||||
Boreotrophon multicostatus
(Eschscholtz 1829)
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Ocenebra barbarensis
(Gabb 1865)
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recombined as Paciocinebrina barbarensis | ||||||||||
Ocinebra lurida
(Middendorff 1848)
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recombined as Paciocinebrina lurida | ||||||||||
SUBSPECIES: Ocinebra lurida munda | ||||||||||
Ocinebra subangulata
(Stearns 1873)
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recombined as Urosalpinx subangulata | ||||||||||
Maxwellia eldridgei
(Arnold 1907)
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Maxwellia gemma
(Sowerby 1879)
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Gastropoda
- Neogastropoda
- Cancellariidae
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Massyla gracilior
(Gabb 1869)
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recombined as Admete gracilior | ||||||||||
Gastropoda
- Bursidae
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Bursa californica
(Hinds 1843)
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synonym of Crossata ventricosa | ||||||||||
Gastropoda
- Cypraeidae
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Zonaria fernandoensis
(Arnold 1907)
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synonym of Neobernaya spadicea | ||||||||||
Gastropoda
- Littorinidae
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Lacuna sp.
Turton 1827
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Gastropoda
- Naticidae
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Natica clausa
Broderip and Sowerby 1829
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synonym of Cryptonatica affinis | ||||||||||
Gastropoda
- Rissoidae
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Alvania acutelirata
(Carpenter 1864)
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synonym of Actonia compacta | ||||||||||
Rissoina kelseyi
Dall and Bartsch 1902
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Gastropoda
- Barleeiidae
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Diala marmorea
Carpenter 1864
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synonym of Pseudodiala acuta | ||||||||||
Barleeia oldroydi
Bartsch 1920
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Gastropoda
- Vermetidae
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Aletes squamigerus
Carpenter 1857
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recombined as Thylacodes squamigerus | ||||||||||
Petaloconchus sp.
Lea 1843
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Gastropoda
- Caecidae
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Micranellum crebricinctum
(Carpenter 1864)
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original and current combination Caecum crebricinctum | ||||||||||
Gastropoda
- Procerithiidae
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Bittium rugatum
Carpenter 1866
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recombined as Lirobittium rugatum | ||||||||||
Bittium catalinensis
Bartsch 1907
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recombined as Lirobittium catalinensis | ||||||||||
Bittium attenuatum
Carpenter 1864
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recombined as Lirobittium attenuatum | ||||||||||
Bittium asperum
(Gabb 1861)
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recombined as Lirobittium asperum | ||||||||||
Gastropoda
- Heterostropha
- Pyramidellidae
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Iselica fenestrata
(Carpenter 1864)
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synonym of Iselica ovoidea | ||||||||||
Turbonilla tenuicula
(Gould 1853)
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recombined as Pyrgiscus tenuiculus | ||||||||||
Gastropoda
- Opisthobranchia
- Cylichnidae
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Coleophysis harpa
(Dall 1871)
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recombined as Acteocina harpa | ||||||||||
Acteocina culcitella
(Gould 1853)
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Bivalvia
- Arcida
- Glycymerididae
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Glycymeris profunda
(Dall 1879)
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synonym of Glycymeris septentrionalis | ||||||||||
Glycymeris subobsoleta
(Carpenter 1864)
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synonym of Glycymeris septentrionalis | ||||||||||
Bivalvia
- Pectinida
- Anomiidae
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Pododesmus macrochisma
(Deshayes 1839)
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recombined as Pododesmus (Monia) macrochisma | ||||||||||
Bivalvia
- Pectinida
- Pectinidae
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Chlamys anapleus
Woodring 1946
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Bivalvia
- Mytilida
- Crenellidae
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Crenella decussata
(Montagu 1808)
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Bivalvia
- Mytilida
- Mytilidae
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Modiolus sp.
(Lamarck 1801)
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Bivalvia
- Lucinida
- Lucinidae
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Parvilucina tenuisculpta
(Carpenter 1864)
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Epilucina californica
(Conrad 1837)
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original and current combination Phacoides californicus | ||||||||||
Bivalvia
- Cardiida
- Chamidae
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Chama pellucida
Broderip 1835
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= Chama arcana
Bernard 1976
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Hendy 2021 | |||||||||
Pseudochama exogyra
(Conrad 1837)
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original and current combination Chama exogyra | ||||||||||
Bivalvia
- Cardiida
- Veneridae
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Transenella tantilla
(Gould 1853)
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recombined as Nutricola tantilla | ||||||||||
Psephidia cymata
Dall 1913
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recombined as Nutricola cymata | ||||||||||
Psephidia ovalis
Dall 1902
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recombined as Nutricola ovalis | ||||||||||
Antigona fordi
(Yates 1890)
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recombined as Globivenus fordii | ||||||||||
Bivalvia
- Cardiida
- Cardiidae
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Nemocardium centifilosum
(Carpenter 1864)
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recombined as Nemocardium (Keenaea) centifilosum | ||||||||||
Trachycardium quadragenarium
(Conrad 1837)
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recombined as Dallocardia quadragenarium | ||||||||||
Bivalvia
- Cardiida
- Tellinidae
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Tellina carpenteri
(Dall 1900)
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recombined as Ameritella carpenteri | ||||||||||
Bivalvia
- Cardiida
- Psammobiidae
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Gari edentula
(Gabb 1869)
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synonym of Gari (Gobraeus) fucata | ||||||||||
Bivalvia
- Hiatellida
- Hiatellidae
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Saxicava arctica
(Linnaeus 1767)
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recombined as Hiatella arctica | ||||||||||
Bivalvia
- Carditida
- Carditidae
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Cyclocardia occidentalis
(Conrad 1855)
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recombined as Coanicardita occidentalis | ||||||||||
Cyclocardia sp.
Conrad 1867
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Miodontiscus prolongatus
(Carpenter 1864)
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Glans subquadrata
(Carpenter 1864)
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synonym of Glans carpenteri | ||||||||||
Bivalvia
- Carditida
- Crassatellidae
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Eucrassatella fluctuata
(Carpenter 1864)
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recombined as Hybolophus fluctuatus | ||||||||||
Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana minuta
(Müller 1776)
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SUBSPECIES: Nuculana minuta praecursor | ||||||||||
Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium pretiosum
Nuttall in Sowerby 1860
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recombined as Antalis pretiosa | ||||||||||
unclassified
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Pomaulax undosus
(Wood 1828)
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recombined as Megastraea undosa | ||||||||||
Pomaulax petrothauma
Berry 1940
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synonym of Megastraea turbanica | ||||||||||
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: | based on nearby landmark | ||
Geographic resolution: | outcrop |
Time
Period: | Quaternary | Epoch: | Pleistocene |
10 m.y. bin: | Cenozoic 6 | ||
Key time interval: | Middle Pleistocene | ||
Age range of interval: | 0.78100 - 0.12600 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 this section. |
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 methods: | surface (float),surface (in situ) |
Reason for describing collection: | paleoecologic analysis |
Museum repositories: | CAS |
Collection method comments: COLLECTOR: Unknown collectors, but likely from multiple collecting events. REPOSITORY: Likely to be at CAS; former Stanford collections. | |
Taxonomic list comments:COVERAGE: Comprehensive for molluscs. NOMENCLATURE: Somewhat antiquated but with many species-resolution identifications. |
Metadata
Database number: | 203114 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2019-07-26 16:39:37 | Last modified: | 2021-11-13 22:33:12 |
Access level: | the public | Released: | 2019-07-26 16:39:37 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
69594. | J. W. Valentine. 1958. Paleoecologic molluscan geography of the Californian Pleistocene. [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] |