San Nicholas Island (SN-11): Quaternary, California
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Ateles squamigerus
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Cysticus cf. jewettii
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Denatlium semipolitum
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Echinoidea
- Camarodonta
- Strongylocentrotidae
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Strongylocentrotus ? purpuratus
(Stimpson 1857)
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original and current combination Echinus purpuratus | ||||||||||
Polyplacophora
- Chitonida
- Callistoplacidae
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Callistochiton crassicostatus
Pilsbry 1893
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Polyplacophora
- Neoloricata
- Mopaliidae
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Mopalia cf. muscosa
(Gould 1846)
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Polyplacophora
- Neoloricata
- Acanthochitonidae
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"Cryptochiton" stelleri
(Middendorf 1847)
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Bivalvia
- Mytilida
- Mytilidae
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Mytilus californianus
Conrad 1837
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Septifer bifurcatus
(Conrad 1837)
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Modiolus cf. fornicatus
(Carpenter 1864)
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replaced by Modiolus carpenteri | ||||||||||
Bivalvia
- Lucinida
- Lucinidae
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Epilucina californica
(Conrad 1837)
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original and current combination Phacoides californicus | ||||||||||
Bivalvia
- Cardiida
- Lasaeidae
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Lasaea cf. cistula
Keen 1938
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synonym of Lasaea adansoni | ||||||||||
Bivalvia
- Cardiida
- Neoleptonidae
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Bernardina bakeri
Dall 1910
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Bivalvia
- Cardiida
- Veneridae
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Transennella tantilla
(Gould 1853)
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recombined as Nutricola tantilla | ||||||||||
Irus cf. lamellifer
(Conrad 1837)
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recombined as Irusella lamellifera | ||||||||||
Protothaca staminea
(Conrad 1837)
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recombined as Leukoma staminea | ||||||||||
Ventricolaria fordii
(Yates 1890)
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recombined as Globivenus fordii | ||||||||||
Bivalvia
- Cardiida
- Semelidae
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Cumingia californica
Conrad 1837
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Bivalvia
- Carditida
- Carditidae
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Glans subquadrata
(Carpenter 1864)
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synonym of Glans carpenteri | ||||||||||
Gastropoda
- Heterostropha
- Pyramidellidae
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Odostomia aff. americana
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Gastropoda
- Heterostropha
- Trimusculidae
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Trimusculus reticulatus
(Sowerby 1835)
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recombined as Trimusculus reticulata | ||||||||||
Gastropoda
- Patellida
- Lottiidae
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Acmaea mitra
Eschscholtz 1833
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Acmaea insessa
(Hinds 1842)
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recombined as Lottia insessa | ||||||||||
Acmaea scabra
(Gould 1846)
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original and current combination Patella (Lottia) scabra | ||||||||||
Acmaea digitalis
Eschscholtz 1833
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recombined as Lottia digitalis | ||||||||||
Acmaea ? limatula
(Carpenter 1864)
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original and current combination Patella limatula | ||||||||||
Acmaea cf. pelta
Eschscholtz 1833
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recombined as Lottia pelta | ||||||||||
Acmaea asmi
(Middendorff 1847)
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recombined as Lottia asmi | ||||||||||
Gastropoda
- Siphonariidae
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"Siphonaria" brannani
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Gastropoda
- Lepetellida
- Haliotidae
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Haliotis cf. cracherodii
Leach 1814
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Haliotis ? rufescens
Swainson 1822
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Gastropoda
- Lepetellida
- Fissurellidae
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Diodora aspera
(Rathke 1833)
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Fissurella volcano
Reeve 1849
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Megatebennus bimaculatus
(Dall 1871)
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recombined as Fissurellidea bimaculata | ||||||||||
Puncturella cf. cooperi
Carpenter 1864
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Gastropoda
- Turbinidae
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Homalopoma carpenteri
(Pilsbry 1889)
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synonym of Homalopoma (Homalopoma) luridum | ||||||||||
Homalopoma cf. baculum
(Carpenter 1864)
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Astraea cf. gibberosa
(Dillwyn 1817)
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recombined as Pomaulax gibberosa | ||||||||||
Gastropoda
- Phasianellidae
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Tricolia pulloides
(Carpenter 1865)
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recombined as Eulithidium pulloides | ||||||||||
Gastropoda
- Trochidae
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Pupillaria cf. optabilis
(Carpenter 1864)
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recombined as Lirularia optabilis | ||||||||||
Tegula gallina
(Forbes 1850)
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recombined as Chlorostoma gallina | ||||||||||
Subspecies: Tegula gallina multifilosa | ||||||||||
Tegula brunnea
(Philippi 1849)
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recombined as Chlorostoma brunnea | ||||||||||
Tegula funebralis
(Adams 1855)
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original and current combination Chlorostoma funebrale | ||||||||||
Gastropoda
- Hipponicidae
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Hipponix antiquatus
(Linnaeus 1767)
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= Antisabia panamensis
Adams 1852
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Hendy 2020 | |||||||||
Gastropoda
- Rissoidae
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Alvania purpurea
Dall 1871
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recombined as Alvinia purpurea | ||||||||||
"Rissoina" aequisculpta
(Keep 1887)
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recombined as Alvinia aequisculpta | ||||||||||
Alvania almo
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Alvania cf. oldroydi
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Gastropoda
- Barleeiidae
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Barleeia cf. oldroydi
Bartsch 1920
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Barleeia subtenuis
Carpenter 1864
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Amphithalamus cf. tenuis
Bartsch 1911
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Amphithalamus inclusus
Lozouet 1998
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Gastropoda
- Caecidae
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Fartulum cf. orcutti
(Dall in Orcutt 1885)
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Caecum sp.
Fleming 1813
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Caecum dalli
Bartsch 1920
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synonym of Caecum quadratum | ||||||||||
Caecum californicum
Dall 1885
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Gastropoda
- Vitrinellidae
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Vitrinella cf. oldroydi
Bartsch 1907
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Gastropoda
- Cerithiopsidae
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Cerithiopsis sp.
Hanley 1849
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Gastropoda
- Neogastropoda
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Barbarofusus ? arnoldi
(Cossmann 1903)
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recombined as Harfordia arnoldi | ||||||||||
Mitromorpha cf. gracilior
(Tryon 1884)
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recombined as Cymakra gracilior | ||||||||||
Gastropoda
- Neogastropoda
- Conidae
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Conus californicus
Reeve 1844
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recombined as Californiconus californicus | ||||||||||
Gastropoda
- Neogastropoda
- Mangeliidae
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Mangelia ? interfossa
Carpenter 1864
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recombined as Perimangelia interfossa | ||||||||||
Mangelia cf. nitens
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corrected as Cythara (Mangelia) | ||||||||||
? Cytharella sp.
Monterosato 1875
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Mangelia cf. variegata
Carpenter 1864
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recombined as Tenaturris variegata | ||||||||||
Gastropoda
- Neogastropoda
- Pseudolividae
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Macron cf. lividus
(Adams 1855)
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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 versicolor
Dall 1871
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Mitrella cf. tuberosa
(Carpenter 1864)
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Gastropoda
- Neogastropoda
- Muricidae
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Acanthina cf. punctulata
(Sowerby I 1835)
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recombined as Acanthinucella punctulata | ||||||||||
Acanthina cf. lugubris
(Sowerby I 1822)
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recombined as Mexacanthina lugubris | ||||||||||
Ocenebra cf. foveolata
(Hinds 1844)
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recombined as Paciocinebrina foveolata | ||||||||||
Ocenebra cf. interfossa
(Carpenter 1864)
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recombined as Paciocinebrina interfossa | ||||||||||
Gastropoda
- Neogastropoda
- Mitridae
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Mitra idae
Melville 1893
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recombined as Mitra (Atrimitra) idae | ||||||||||
Gastropoda
- Neogastropoda
- Olividae
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Olivella biplicata
(Sowerby 1825)
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recombined as Callianax biplicata | ||||||||||
Gastropoda
- Triviidae
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Pusula californiana
(Gray 1827)
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recombined as Pseudopusula californiana | ||||||||||
Gastropoda
- Vermetidae
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Petaloconchus complicatus
Dall 1908
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Spiroglyphus lituellus
(Morch 1861)
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recombined as Dendropoma lituella | ||||||||||
Gastropoda
- Littorinidae
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Lacuna unifasciata
Carpenter 1857
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recombined as Lacuna (Epheria) unifasciata | ||||||||||
Littorina cf. scutulata
Gould 1849
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recombined as Littorina (Littorina) scutulata | ||||||||||
Littorina planaxis
Philippi 1847
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replaced by Littorina (Neritrema) keenae | ||||||||||
Gastropoda
- Procerithiidae
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Bittium attenuatum
Carpenter 1864
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recombined as Lirobittium attenuatum | ||||||||||
Bittium armillatum
Carpenter 1864
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recombined as Lirobittium armillatum | ||||||||||
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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Crepipatella lingulata
(Gould 1846)
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Crepidula onyx
Sowerby 1824
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Crepidula adunca
Sowerby 1824
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Gastropoda
- Opisthobranchia
- Cylichnidae
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Coleophysis ? harpa
(Dall 1871)
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recombined as Acteocina harpa | ||||||||||
Thecostraca
- Balanomorpha
- Tetraclitidae
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Tetraclita ? squamosa
Bruguière 1789
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Subspecies: Tetraclita squamosa rubescens | ||||||||||
Anthozoa
- Scleractinia
- Dendrophylliidae
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Balanophyllia elegans
Verrill 1864
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see common names |
Geography
Country: | United States | State/province: | California | County: | Ventura |
Coordinates: | 33.2° North, 119.5° West (view map) | ||||
Paleocoordinates: | 33.2° North, 119.2° West | ||||
Basis of coordinate: | stated in text | ||||
Geographic resolution: | outcrop |
Time
Period: | Quaternary |
10 m.y. bin: | Cenozoic 6 |
Key time interval: | Quaternary |
Age range of interval: | 2.58000 - 0.00000 m.y. ago |
Stratigraphy
Formation: | Unnamed | ||||
Local section: | Celery Creek | ||||
Regional section: | San Nicholas Island | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: Dune sand and fossiliferous marine terrace deposits of Quaternary age. These overlie Eocene strata. Fossils come from seven well-developed wave-cut platforms at altitudes of 25 to 990 feet. Several submerged terraces are present on the shelf adjacent to the island., the lowest being 400 ft below sea-level. Presumably all the terrace platforms on San Nicholas Island were cut later than the middle Pleistocene diastrophism recognized elsewhere in southern California. Terrace platforms are covered with a variety of sediments of marine and non-marine origin and range in thickness from a few inches to many feet. |
Lithology and environment
Primary lithology: | pebbly,shelly/skeletal conglomeratic,calcareous sandstone |
Includes fossils? | Y |
Lithology description: Generally comprise poorly sorted calcareous sand and gravel composed primarily of mollusc shell fragments, echinoid plates and spines, calcareous algae, and bryozoans. | |
Environment: | coastal indet. |
Glacial or sequence phase: | transgressive systems tract |
Geology comments: Higher emergent terraces may represent wave-abraded platforms that were eroded during eustatic changes in sea level combined with tectonic uplift. The lowest emergent terrace may have been cut during eustatic sea-level changes followed by very slight regional seaward warping. Presumably all the terrace platforms on San Nicholas Island were cut later than the middle Pleistocene diastrophism recognized elsewhere in southern California |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | some macrofossils,some microfossils |
Collection methods: | selective quarrying,field collection |
Reason for describing collection: | general faunal/floral analysis |
Collection method comments: Collections made by Vedder et al (1955-1956). Earlier collections by Cooper (1894), and Howard (1955) | |
Taxonomic list comments:Comprehensive for invertebrates |
Metadata
Also known as: | Vedder & Norris (1963) SN-11 | ||
Database number: | 37939 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2004-03-27 12:59:21 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2004-03-27 12:59:21 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
10107. | J. G. Vedder and R. M. Norris. 1963. Geology of San Nicolas Island, California. United States Geological Survey Professional Paper 369:1-65 [A. Miller/A. Hendy/P. Wagner] |
Secondary references:
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] |