Signal Hill [San Pedro Sands]: Middle Pleistocene, California
collected by DeLong 1938
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana taphria
(Dall 1896)
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| recombined as Saccella taphria | ||||||||||
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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
- Nuculida
- Nuculidae
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Nucula castrensis
Hinds 1843
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| recombined as Acila (Truncacila) castrensis | ||||||||||
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Bivalvia
- Lucinida
- Lucinidae
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Lucina acutilineata
Conrad 1849
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= Lucinoma annulatum
Reeve 1850
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Hendy 2020 | |||||||||
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Lucina tenuisculpta
Carpenter 1864
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| recombined as Parvilucina tenuisculpta | ||||||||||
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Bivalvia
- Cardiida
- Psammobiidae
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Gari edentula
(Gabb 1869)
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| synonym of Gari (Gobraeus) fucata | ||||||||||
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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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Macoma inquinata
(Deshayes 1855)
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| recombined as Macoma (Macoma) inquinata | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Laevicardium corbis
(Martyn 1784)
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= Clinocardium (Clinocardium) nuttallii
Conrad 1837
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Coan et al. 2000 | |||||||||
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Laevicardium californica
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= Clinocardium (Clinocardium) nuttallii
Conrad 1837
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Coan et al. 2000 | |||||||||
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Laevicardium nuttallii
(Conrad 1837)
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| recombined as Clinocardium (Clinocardium) nuttallii | ||||||||||
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Laevicardium quadragenarium
(Conrad 1837)
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| recombined as Dallocardia quadragenarium | ||||||||||
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Bivalvia
- Cardiida
- Mactridae
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Schizothaerus nuttallii
(Conrad 1837)
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| recombined as Tresus nuttallii | ||||||||||
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Bivalvia
- Cardiida
- Veneridae
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Psephidia salmonea
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| replaced by Nutricola | ||||||||||
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Psephidia ovalis
Dall 1902
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| recombined as Nutricola ovalis | ||||||||||
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Psephidia cymata
Dall 1913
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| recombined as Nutricola cymata | ||||||||||
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Clementia subdiaphana
Carpenter 1864
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| recombined as Compsomyax subdiaphana | ||||||||||
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Bivalvia
- Pholadida
- Corbulidae
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Corbula luteola
Carpenter 1864
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| recombined as Caryocorbula luteola | ||||||||||
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Bivalvia
- Pholadida
- Myidae
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Cryptomya californica
(Conrad 1837)
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Bivalvia
- Thraciida
- Thraciidae
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Thracia undulata
(Conrad 1849)
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| original and current combination Cyathodonta undulata | ||||||||||
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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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Saxicava arctica
(Linnaeus 1767)
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| recombined as Hiatella arctica | ||||||||||
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Panope generosa
(Gould 1850)
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| original and current combination Panopea generosa | ||||||||||
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Bivalvia
- Carditida
- Carditidae
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Cardita ventricosa
Gould 1850
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| recombined as Coanicardita ventricosa | ||||||||||
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Bivalvia
- Mytilida
- Mytilidae
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Botula diegensis
(Dall 1911)
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| recombined as Adula diegensis | ||||||||||
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Bivalvia
- Pectinida
- Anomiidae
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Pododesmus macroschisma
(Deshayes 1839)
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| recombined as Pododesmus (Monia) macrochisma | ||||||||||
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Bivalvia
- Pectinida
- Pectinidae
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Pectinidae indet.
Wilkes 1810
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| as "Pecten sp." | ||||||||||
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Pecten multirugosus
Gale 1928
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| synonym of Crassadoma gigantea | ||||||||||
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Pecten stearnsii
Dall 1878
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= Leopecten diegensis
Dall 1898
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Hendy 2021 | |||||||||
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Pecten latiauratus
Conrad 1837
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| recombined as Leptopecten latiauratus | ||||||||||
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Pecten hastatus
Sowerby 1842
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| recombined as Chlamys hastata | ||||||||||
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Pecten hindsii
Carpenter 1864
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| synonym of Chlamys rubida | ||||||||||
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Pecten jordani
Arnold 1903
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| synonym of Chlamys rubida | ||||||||||
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula nunimaria
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Crepidula onyx
Sowerby 1824
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Crepidula adunca
Sowerby 1824
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Crepidula princeps
Conrad 1855
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Crepidula excavata
(Broderip 1834)
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Gastropoda
- Procerithiidae
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Bittium asperum
(Gabb 1861)
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| recombined as Lirobittium asperum | ||||||||||
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Bittium ornatissimum
(Bartsch 1911)
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| synonym of Lirobittium armillatum | ||||||||||
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Bittium catalinense
(Bartsch 1907)
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| recombined as Lirobittium catalinensis | ||||||||||
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Bittium rugatum
Carpenter 1866
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| recombined as Lirobittium rugatum | ||||||||||
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Gastropoda
- Bursidae
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Bursa califomica
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Gastropoda
- Neogastropoda
- Cancellariidae
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Cancellaria tritonidea
(Gabb 1866)
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| recombined as Euclia tritonidea | ||||||||||
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Gastropoda
- Neogastropoda
- Olividae
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Olivella pedroana
(Conrad 1855)
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| recombined as Callianax pedroana | ||||||||||
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Gastropoda
- Neogastropoda
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Tritonalia poulsoni
(Carpenter 1864)
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| recombined as Roperia poulsoni | ||||||||||
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Gastropoda
- Neogastropoda
- Mangeliidae
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Mangelia hecetae
Dall and Bartsch 1910
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| recombined as Kurtziella hecetae | ||||||||||
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Gastropoda
- Neogastropoda
- Conidae
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Conus californicus
Reeve 1844
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| recombined as Californiconus californicus | ||||||||||
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Gastropoda
- Neogastropoda
- Turridae
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Moniliopsis incisa
(Carpenter 1863)
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| recombined as Ophiodermella incisa | ||||||||||
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Surculites carpenterianus
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Gastropoda
- Neogastropoda
- Terebridae
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Terebra albocincta
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= Neoterebra pedroana
Dall 1908
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Hendy 2021 | |||||||||
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Gastropoda
- Neogastropoda
- Clathurellidae
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Clathurella conradiana
Gabb 1866
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| recombined as Crockerella conradiana | ||||||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius mendicus
(Gould 1849)
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| recombined as Hima mendica | ||||||||||
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Nassarius perpinguis
(Hinds 1844)
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| recombined as Caesia perpinguis | ||||||||||
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Gastropoda
- Neogastropoda
- Columbellidae
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Amphissa ventricosa
Arnold 1903
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| synonym of Amphissa undata | ||||||||||
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Amphissa reticulata
(Dall 1916)
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Amphissa columbiana
Dall 1916
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Mitrella tuberosa
(Carpenter 1864)
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Mitrella carinata
(Hinds 1844)
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| recombined as Alia carinata | ||||||||||
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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
- Fasciolariidae
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Fusinus barbarensis
(Trask 1855)
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| recombined as Barbarofusus barbarensis | ||||||||||
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Gastropoda
- Neogastropoda
- Muricidae
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Trophon pacificus
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Trophon eucymata
(Dall 1902)
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| recombined as Boreotrophon eucymatus | ||||||||||
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Trophon multicostatus
(Eschscholtz 1829)
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| recombined as Boreotrophon multicostatus | ||||||||||
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Tritonalia barbarensis
(Gabb 1865)
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| recombined as Paciocinebrina barbarensis | ||||||||||
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Tritonalia lurida
(Middendorff 1848)
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| recombined as Paciocinebrina lurida | ||||||||||
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Gastropoda
- Naticidae
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Neverita recluziana
(Deshayes 1839)
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| recombined as Glossaulax reclusiana | ||||||||||
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Neverita alta
(Arnold 1903)
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| recombined as Glossaulax altus | ||||||||||
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Polinices lewisii
(Gould 1847)
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| recombined as Euspira lewisii | ||||||||||
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Natica clausa
Broderip and Sowerby 1829
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| synonym of Cryptonatica affinis | ||||||||||
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Gastropoda
- Cerithiopsidae
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Seila montereyensis
Bartsch 1907
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Gastropoda
- Epitoniidae
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Epitonium indianorum
(Carpenter 1864)
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Gastropoda
- Turritellidae
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Turritella cooperi
Carpenter 1864
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Gastropoda
- Cerithiidae
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Bittium latum
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Gastropoda
- Heterostropha
- Pyramidellidae
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Turbonilla pedroana
(Dall and Bartsch 1903)
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| recombined as Pyrgolampros pedroana | ||||||||||
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Gastropoda
- Eucyclidae
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Turcica caffea
(Gabb 1865)
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Gastropoda
- Trochidae
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Calliostoma costatum
(Martyn 1784)
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| synonym of Calliostoma ligatus | ||||||||||
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Calliostoma canaliculatum
(Lightfoot 1786)
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Los Angeles |
| Coordinates: | 33.8° North, 118.2° West (view map) | ||||
| Paleocoordinates: | 33.8° North, 118.2° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| 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: | San Pedro | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the San Pedro Sands, which unconformably overlie the Pico Fm, and are overlain unconformably by the Palos Verdes Sands. AGE: Early Pleistocene in text; now considered middle Pleistocene [AH]. STRATIGRAPHIC POSITION: From upper 75 ft of San Pedro Sands exposed at this locality. | |||||
Lithology and environment
| Primary lithology: | "cross stratification",brown,gray unlithified siltstone |
| Secondary lithology: | "cross stratification",brown,gray unlithified sandstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Well-bedded, locally cross-beded, loosely consolidated marine silts, sands, and gravels, gray when fresh, often weathering brown. LITHIFICATION: | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | surface (in situ),field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | DeLong | Collection dates: | 1938 |
| Collection method comments: COLLECTOR: DeLong, 1938. REPOSITORY: Not stated in text. | |||
| Taxonomic list comments:COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Not an authoritative publication, and with somewhat antiquated nomenclature, but with species-resolution identifications. | |||
Metadata
| Database number: | 96894 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2010-07-09 06:41:26 | Last modified: | 2020-12-04 23:12:00 |
| Access level: | the public | Released: | 2010-07-09 06:41:26 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 33079. | J. H. DeLong, Jr. 1941. The paleontology and stratigraphy of the Pleistocene at Signal hill, Long Beach, California. Transactions of the San Diego Society of Natural History 9:229-250 [A. Hendy/A. Hendy/J. Marcot] |
Secondary references:
| 18663 | E. V. Coan, P. V. Scott, and F. R. Bernard. 2000. Bivalve seashells of western North America. Santa Barbara Museum of Natural history Monographs 2:1-764 [A. Miller/A. Hendy/M. Uhen] | |
| 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] |