San Nicholas Island (SN-10): Quaternary, California

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Cysticus jewettii
Cysticus cf. regularis
Anthozoa - Scleractinia - Dendrophylliidae
Balanophyllia elegans Verrill 1864
Polyplacophora - Neoloricata - Ischnochitonidae
Stenoplax cf. conspicuus (Carpenter 1879)
recombined as Ischnochiton (Stenoplax) conspicua
Polyplacophora - Neoloricata - Mopaliidae
Mopalia cf. muscosa (Gould 1846)
Gastropoda - Phasianellidae
Tricolia cf. rubrilineata
Tricolia cf. pulloides (Carpenter 1865)
recombined as Eulithidium pulloides
Gastropoda - Turbinidae
Pupillaria pupilla (Gould 1849)
Homalopoma carpenteri (Pilsbry 1889)
synonym of Homalopoma (Homalopoma) luridum
Gastropoda - Trochidae
Calliostoma ? ligatum (Gould 1849)
recombined as Calliostoma ligatus
Halistylus pupoideus (Carpenter 1864)
Pupillaria cf. optabilis (Carpenter 1864)
recombined as Lirularia optabilis
Gastropoda - Lepetellida - Fissurellidae
Megatebennus bimaculatus (Dall 1871)
recombined as Fissurellidea bimaculata
Diodora aspera (Rathke 1833)
Fissurella volcano Reeve 1849
Gastropoda - Lepetellida - Haliotidae
Haliotis ? rufescens Swainson 1822
Gastropoda - Epitoniidae
Opalia wroblewskyi (Mörch 1876)
synonym of Opalia borealis
Subspecies: Opalia wroblewskyi chacei
Epitonium cf. indianorum (Carpenter 1864)
Gastropoda - Eulimidae
Balcis cf. arnoldi Bartsch 1917
recombined as Melanella arnoldi
Gastropoda - Neotaenioglossa - Calyptraeidae
Crepidula perforans Valenciennes 1846
Crepidula onyx Sowerby 1824
Crepidula adunca Sowerby 1824
Crepidula aculeata (Gmelin 1791)
    = Bostrycapulus decorus Collin 2019
Hendy 2020
Gastropoda - Cerithiidae
Bittium eschrichtii (Middendorff 1849)
recombined as Neostylidium eschrichtii
Subspecies: Bittium eschrichtii montereyense
Gastropoda - Neogastropoda - Olividae
Olivella cf. pedroana (Conrad 1855)
recombined as Callianax pedroana
Gastropoda - Neogastropoda - Siphonaliidae
Calicantharus fortis (Carpenter 1866)
Gastropoda - Neogastropoda - Fasciolariidae
Barbarofusus ? kobelti (Dall 1877)
Gastropoda - Neogastropoda - Columbellidae
Amphissa columbiana Dall 1916
Mitrella tuberosa (Carpenter 1864)
Gastropoda - Neogastropoda - Pseudomelatomidae
Pseudomelatoma torosa (Gabb 1864)
Gastropoda - Neogastropoda - Clathurellidae
Glyphostoma sp. n. sp. Gabb 1872
Gastropoda - Neogastropoda - Mangeliidae
Mangelia aff. rhyssa
corrected as Cythara (Mangelia)
Mangelia variegata Carpenter 1864
recombined as Tenaturris variegata
Mangelia interfossa Carpenter 1864
recombined as Perimangelia interfossa
Gastropoda - Neogastropoda - Mitromorphidae
Mitromorpha cf. filosa (Carpenter 1864)
replaced by Mitromorpha carpenteri
Gastropoda - Neogastropoda
Mitromorpha cf. gracilior (Tryon 1884)
recombined as Cymakra gracilior
Barbarofusus arnoldi (Cossmann 1903)
recombined as Harfordia arnoldi
Gastropoda - Neogastropoda - Cystiscidae
Gibberulina pyriformis (Carpenter 1864)
synonym of Granulina margaritula
Gastropoda - Neogastropoda - Muricidae
Boreotrophon ? stuarti (Smith 1880)
Acanthina spirata (Blainville 1832)
recombined as Acanthinucella spirata
Subspecies: Acanthina spirata punctulata
Ocenebra lurida (Middendorff 1848)
recombined as Paciocinebrina lurida
Subspecies: Ocenebra lurida munda
Ocenebra interfossa (Carpenter 1864)
recombined as Paciocinebrina interfossa
? Morula cf. lugubris (Sowerby I 1822)
recombined as Mexacanthina lugubris
Gastropoda - Littorinidae
Lacuna cf. unifasciata Carpenter 1857
recombined as Lacuna (Epheria) unifasciata
Lacuna cf. carinata Gould 1848
recombined as Lacuna (Epheria) carinata
Littorina scutulata Gould 1849
recombined as Littorina (Littorina) scutulata
Gastropoda - Rissoidae
Alvania purpurea Dall 1871
recombined as Alvinia purpurea
Alvania cf. acutelirata (Carpenter 1864)
synonym of Actonia compacta
Gastropoda - Barleeiidae
Barleeia subtenuis Carpenter 1864
Amphithalamus tenuis Bartsch 1911
Amphithalamus inclusus Lozouet 1998
Gastropoda - Vermetidae
Spiroglyphus lituellus (Morch 1861)
recombined as Dendropoma lituella
Petaloconchus anellum
Petaloconchus complicatus Dall 1908
Gastropoda - Cerithiopsidae
Cerithiopsis sp. Hanley 1849
Gastropoda - Hipponicidae
Hipponix antiquatus (Linnaeus 1767)
    = Antisabia panamensis Adams 1852
Hendy 2020
Gastropoda - Procerithiidae
Bittium cf. armillatum Carpenter 1864
recombined as Lirobittium armillatum
Gastropoda - Heterostropha - Pyramidellidae
Turbonilla cf. valdezi (Dall and Bartsch 1907)
Odostomia cf. oldroydi
Odostomia altina
Odostomia cf. virginalis
Gastropoda - Patellida - Lottiidae
Acmaea pelta Eschscholtz 1833
recombined as Lottia pelta
Acmaea scabra (Gould 1846)
original and current combination Patella (Lottia) scabra
Acmaea scutum Eschscholtz 1833
recombined as Lottia scutum
Acmaea limatula (Carpenter 1864)
original and current combination Patella limatula
Acmaea mitra Eschscholtz 1833
Bivalvia - Arcida - Arcidae
Arca ? sisquocensis (Reinhart 1937)
original and current combination Arca (Arca) sisquocensis
Bivalvia - Arcida - Glycymerididae
Glycymeris subobsoleta (Carpenter 1864)
synonym of Glycymeris septentrionalis
Bivalvia - Pectinida - Pectinidae
Chlamys ? hastatus (Sowerby 1842)
recombined as Chlamys hastata
Bivalvia - Mytilida - Mytilidae
Mytilus californianus Conrad 1837
Bivalvia - Lucinida - Lucinidae
Epilucina californica (Conrad 1837)
original and current combination Phacoides californicus
Bivalvia - Cardiida - Neoleptonidae
Bernardina bakeri Dall 1910
Bivalvia - Cardiida - Lasaeidae
Lasaea cf. cistula Keen 1938
synonym of Lasaea adansoni
Bivalvia - Cardiida - Veneridae
Transennella tantilla (Gould 1853)
recombined as Nutricola tantilla
Saxidomus nuttalli Conrad 1837
Petricola cf. carditoides (Conrad 1837)
recombined as Petricola (Petricola) carditoides
Turtonia cf. minuta (Fabricius 1780)
Ventricolaria ? fordii (Yates 1890)
recombined as Globivenus fordii
Protothaca cf. staminea (Conrad 1837)
recombined as Leukoma staminea
Bivalvia - Cardiida - Cardiidae
Clinocardium nuttallii (Conrad 1837)
recombined as Clinocardium (Clinocardium) nuttallii
Bivalvia - Cardiida - Tellinidae
Tellina salmonea (Carpenter 1864)
synonym of Cadella nuculoides
Bivalvia - Cardiida - Semelidae
Cumingia californica Conrad 1837
Bivalvia - Hiatellida - Hiatellidae
Hiatella arctica (Linnaeus 1767)
Bivalvia - Carditida - Carditidae
Cyclocardia cf. longini
Miodontiscus prolongatus (Carpenter 1864)
Glans subquadrata (Carpenter 1864)
synonym of Glans carpenteri
Scaphopoda - Dentaliida - Dentaliidae
Dentalium semipolitum Broderip and Sowerby 1829
    = Graptacme semistriata Turton 1819
Hendy 2020
Echinoidea - Camarodonta - Strongylocentrotidae
Strongylocentrotus cf. franciscanus (Agassiz 1863)
original and current combination Toxocidaris franciscana
Strongylocentrotus ? purpuratus (Stimpson 1857)
original and current combination Echinus purpuratus
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
Key time interval:Quaternary
Age range of interval:2.58800 - 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-10
Database number:37940
Authorizer:A. Hendy Enterer:A. Hendy
Modifier:A. Hendy Research group:marine invertebrate
Created:2004-03-27 13:00:32 Last modified:2013-11-25 13:37:23
Access level:the public Released:2004-03-27 13:00:32
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]