LACMIP 6210 [San Pedro Sand]: Middle Pleistocene, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Echinoidea
- Clypeasteroida
- Dendrasteridae
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Dendraster sp.
Agassiz and Desor 1847
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Malacostraca
- Decapoda
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Decapoda indet.
Latreille 1802
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Thecostraca
- Balanomorpha
- Balanidae
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Balanus sp.
Da Costa 1778
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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
- Lucinida
- Lucinidae
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Lucinoma annulata
(Reeve 1850)
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| recombined as Lucinoma annulatum | ||||||||||
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Lucinisca nuttalli
(Conrad 1837)
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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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Leporimetis obesa
(Deshayes 1855)
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Bivalvia
- Cardiida
- Donacidae
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Donax californicus
Conrad 1837
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| recombined as Donax (Paradonax) californicus | ||||||||||
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Bivalvia
- Cardiida
- Cardiidae
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Cardiidae indet.
Lamarck 1809
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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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Saxidomus cf. nuttalli
Conrad 1837
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Bivalvia
- Cardiida
- Ungulinidae
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Diplodonta orbellus
(Gould 1851)
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| recombined as Diplodonta orbella | ||||||||||
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Bivalvia
- Pholadida
- Myidae
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Cryptomya californica
(Conrad 1837)
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Bivalvia
- Hiatellida
- Hiatellidae
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Panopea abrupta
(Conrad 1849)
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Bivalvia
- Thraciida
- Thraciidae
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Cyathodonta pedroana
Dall 1915
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Bivalvia
- Pectinida
- Pectinidae
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Chlamys sp.
Röding 1798
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Chlamys hastata
(Sowerby 1842)
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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
- Mytilidae
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Modiolus rectus
(Conrad 1837)
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| recombined as Modiolatus rectus | ||||||||||
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Gastropoda
- Opisthobranchia
- Haminoeidae
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Haminoea vesicula
(Gould 1855)
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Gastropoda
- Turbinidae
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Astraea gibbosa
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| COMMENTS: Spelt "Astrea" | ||||||||||
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Astraea undosa
(Wood 1828)
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| recombined as Megastraea undosa | ||||||||||
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Gastropoda
- Trochidae
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Calliostoma annulatum
(Lightfoot 1786)
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Gastropoda
- Epitoniidae
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Epitonium bellastriata
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Gastropoda
- Naticidae
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Naticidae indet.
Guilding 1834
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Naticidae indet.
Guilding 1834
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Neverita reclusiana
(Deshayes 1839)
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| recombined as Glossaulax reclusiana | ||||||||||
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Gastropoda
- Neogastropoda
- Mitridae
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Mitra idea
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Gastropoda
- Neogastropoda
- Muricidae
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Ocenebra foveolata
(Hinds 1844)
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| recombined as Paciocinebrina foveolata | ||||||||||
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Gastropoda
- Neogastropoda
- Strictispiridae
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Crassispira zizyphus
(Berry 1940)
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| recombined as Strictispira zizyphus | ||||||||||
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Gastropoda
- Neogastropoda
- Turridae
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Ophiodermella sp.
Bartsch 1944
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Megasurcula carpentaria
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Gastropoda
- Neogastropoda
- Olividae
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Olivella baetica
Carpenter 1864
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| recombined as Callianax baetica | ||||||||||
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Olivella biplicata
(Sowerby 1825)
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| recombined as Callianax biplicata | ||||||||||
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Gastropoda
- Neogastropoda
- Fasciolariidae
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Fusinus sp.
Rafinesque 1815
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Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius fossatus
(Gould 1849)
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| recombined as Caesia fossatus | ||||||||||
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Nassarius perpinguis
(Hinds 1844)
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| recombined as Caesia perpinguis | ||||||||||
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Nassarius mendicus
(Gould 1849)
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| recombined as Hima mendica | ||||||||||
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Gastropoda
- Neogastropoda
- Siphonaliidae
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Calicantharus fortis
(Carpenter 1866)
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula adunca
Sowerby 1824
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? Crucibulum sp.
Schumacher 1817
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Scaphopoda
- Dentaliida
- Dentaliidae
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Dentalium neohexagonum
Sharp and Pilsbry 1897
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | California | County: | Orange |
| Coordinates: | 33.9° North, 117.9° West (view map) | ||||
| Paleocoordinates: | 33.9° North, 118.0° West | ||||
| Basis of coordinate: | based on nearby landmark | ||||
| Altitude: | 65 meters | ||||
| Geographic resolution: | outcrop |
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: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From "upper fauna" zone of the San Pedro Fm, which locally is overlain by the Coyote Hills Fm (Late Pleistocene). Regional correlatives include Lomita Marl and "San Pedro Sands" in the San Pedro area. THICKNESS: From bed within unit that reaches ~100 m. AGE: Middle Pleistocene on the basis of molluscan biostratigraphy. STRATIGRAPHIC POSITION: Elevation between 64 and 65.6 m in a 25 cm thick bed, that lies approximately 4-5 m stratigraphically below LACMIP 6211 and approximately 17 m stratigraphically below the base of the overlying Coyote Hills Fm. | |||||
Lithology and environment
| Primary lithology: | unlithified silty sandstone |
| Includes fossils? | Y |
| Lithology description: SPECIFIC LITHOLOGY: Poorly sorted, silty to medium-grained arkosic to subarkosic, biotitic, very friable sandstone. LITHIFICATION: Unlithified given age, figured specimens (elsewhere) and collections from the unit inspected by the enterer. | |
| Environment: | transition zone/lower shoreface |
| Geology comments: ENVIRONMENT: Shallow inner sublittoral water depths (9-20 m). TEMPERATURE: Temperate to warm-water, equivalent to present-day 32-34° off the California coast. | |
Taphonomy
| Modes of preservation: | body,original aragonite,original calcite |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | excellent |
Collection methods and comments
| Collection methods: | surface (in situ),survey of museum collection |
| Reason for describing collection: | biostratigraphic analysis |
| Museum repositories: | LACM |
| Collection method comments: COLLECTOR: D. Weir and M. Morgan (unknown date). REPOSITORY: LACMIP | |
| Taxonomic list comments:COVERAGE: Exhaustive for bivalvia and gastropoda, and where present scaphopoda and annelida. NOMENCLATURE: Not an authoritative publication, but with excellent modern nomenclature including species-, but not subgenus-level assignments. | |
Metadata
| Database number: | 71053 | ||
| Authorizer: | A. Hendy | Enterer: | A. Hendy |
| Modifier: | A. Hendy | Research group: | marine invertebrate |
| Created: | 2007-04-15 18:30:54 | Last modified: | 2021-11-07 23:27:58 |
| Access level: | authorizer only | Released: | 2008-04-15 18:30:54 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 23800. | C. L. Powell and D. Stevens. 2000. Age and paleoenvironmental significance of mega-invertebrates from the "San Pedro" Formation in the Coyote Hills, Fullerton and Buena Park, Orange County, Southern California. United States Geological Survey Open File Report 319:1-83 [A. Hendy/A. Hendy/P. Wagner] |