USGS M1715, Arastradero Road: Late/Upper Pliocene, California
collected by Addicott 1962-1963
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Gastropoda
- Heterostropha
- Pyramidellidae
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Odostomia sp.
Fleming 1817
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Gastropoda
- Neotaenioglossa
- Calyptraeidae
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Crepidula cf. princeps
Conrad 1855
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Gastropoda
- Procerithiidae
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Bittium casmaliense
Bartsch 1911
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| recombined as Lirobittium casmaliense | |||||||
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Gastropoda
- Littorinidae
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Littorina petricola
Dall 1908
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Gastropoda
- Naticidae
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Neverita (Glossaulax) cf. recluziana
(Deshayes 1839)
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| recombined as Glossaulax reclusiana | |||||||
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Cryptonatica cf. aleutica
Dall 1919
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| synonym of Cryptonatica affinis | |||||||
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Gastropoda
- Neogastropoda
- Columbellidae
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Mitrella cf. gouldii
(Carpenter 1857)
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| synonym of Mitrella gausapata | |||||||
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Gastropoda
- Neogastropoda
- Nassariidae
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Nassarius (Demondia) californianus
(Conrad 1856)
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| recombined as Caesia californiana | |||||||
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Nassarius (Caesia) grammatus
(Dall 1917)
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Gastropoda
- Neogastropoda
- Buccinidae
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Neptunea cf. tabulata
(Baird 1863)
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| recombined as Neptunea (Sulcosipho) tabulata | |||||||
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Gastropoda
- Neogastropoda
- Cancellariidae
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Cancellaria sp.
Lamarck 1799
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Cancellaria arnoldi
Dall 1909
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Gastropoda
- Neogastropoda
- Turridae
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Ophiodermella graciosana
(Arnold 1908)
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Megasurcula remondii
(Gabb 1866)
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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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Gastropoda
- Neogastropoda
- Muricidae
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Thais (Nucella) cf. lima
(Martyn 1784)
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| recombined as Thais (Polytropa) lima | |||||||
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Thais (Nucella) trancosana
Arnold 1908
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Bivalvia
- Mytilida
- Mytilidae
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Modiolus sp.
(Lamarck 1801)
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Bivalvia
- Arcida
- Arcidae
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Anadara (Anadara) trilineata
(Conrad 1856)
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| recombined as Anadara trilineata | |||||||
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Bivalvia
- Cardiida
- Cardiidae
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Clinocardium cf. meekianum
(Gabb 1866)
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| recombined as Clinocardium (Clinocardium) meekianum | |||||||
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Bivalvia
- Cardiida
- Tellinidae
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Tellina sp.
Linnaeus 1758
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Tellina (Peronidea) cf. lutea
Gray 1828
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| recombined as Tellina (Megangulus) lutea | |||||||
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Macoma secta
(Conrad 1837)
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| recombined as Rexithaerus secta | |||||||
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Macoma aff. nasuta
(Conrad 1837)
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= Macoma addicotti n. sp.
Nikas 1977
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Nikas 1977 | ||||||
| recombined as Macoma (Rexithaerus) addicotti | |||||||
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Macoma nasuta
(Conrad 1837)
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Bivalvia
- Cardiida
- Veneridae
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Protothaca staleyi
(Gabb 1866)
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| recombined as Leukoma staleyi | |||||||
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Humilaria perlaminosa
(Conrad 1855)
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Bivalvia
- Cardiida
- Mactridae
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Tresus pajaroanus
(Conrad 1857)
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Spisula cf. mercedensis
Packard 1916
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| synonym of Mactromeris catilliformis | |||||||
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Spisula albaria
(Conrad 1848)
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| recombined as Mactromeris albaria | |||||||
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Bivalvia
- Pholadida
- Myidae
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Cryptomya californica
(Conrad 1837)
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Bivalvia
- Pholadida
- Pholadidae
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? Zirfaea sp.
Gray 1842
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Bivalvia
- Solenida
- Solenidae
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Solen cf. sicarius
Gould 1850
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| see common names | |||||||
Geography
| Country: | United States | State/province: | California | County: | Santa Clara |
| Coordinates: | 37.4° North, 122.2° West (view map) | ||||
| Paleocoordinates: | 37.2° North, 121.2° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Pliocene |
| Stage: | Piacenzian | 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Late/Upper Pliocene | ||
| Age range of interval: | 3.60000 - 2.58000 m.y. ago |
Stratigraphy
| Formation: | Merced | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Merced Fm, which overlies the Monterey Shale (Miocene). AGE: Late Pliocene, on the basis of macrofossil biostratigraphy. STRATIGRAPHIC POSITION: From the basal Merced Fm, immediately above contact with Monterey Shale. | |||||
Lithology and environment
| Primary lithology: | shelly/skeletal unlithified sandstone |
| Lithology description: SPECIFIC LITHOLOGY: Fossiliferous sandstone. LITHIFICATION: Unlithified, on the basis of figured specimens. | |
| 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: | general faunal/floral analysis | ||
| Collectors: | Addicott | Collection dates: | 1962-1963 |
| Collection method comments: COLLECTOR: W.O. Addicott and others, 1962-1963. REPOSITORY: Then USGS, now probably at CAS or UCMP. | |||
| Taxonomic list comments:COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Not an authoritative publication, with somewhat antiquated nomenclature, but species-resolution identifications. | |||
Metadata
| Database number: | 96571 | ||
| Authorizer: | A. Hendy, J. Marcot | Enterer: | A. Hendy, J. Marcot |
| Modifier: | M. Clapham | Research group: | marine invertebrate |
| Created: | 2010-06-12 23:22:26 | Last modified: | 2017-04-22 18:48:02 |
| Access level: | the public | Released: | 2010-06-12 23:22:26 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 32781. | W. O. Addicott. 1969. Late Pliocene mollusks from San Francisco Peninsula, California, and their paleogeographic significance. Proceedings of the California Academy of Sciences 37(3):57-93 [A. Hendy/A. Hendy] |
Secondary references:
| 88140 | A. J. Nikas. 1977. Description of a new bivalve of the genus Macoma from the Pliocene of central California. The Veliger 19(4):434-437 [J. Marcot/J. Marcot] |