Also known as Vedder & Norris (1963) SN-3
Where: Ventura County, California (33.2° N, 119.5° W: paleocoordinates 33.2° N, 119.2° W)
• coordinate stated in text
• outcrop-level geographic resolution
When: Unnamed Formation, Quaternary (2.6 - 0.0 Ma)
• 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.
• bed-level stratigraphic resolution
Environment/lithology: coastal; pebbly, shelly/skeletal, conglomeratic, calcareous sandstone
Size class: macrofossils
Collection methods: quarrying,
• Collections made by Vedder et al (1955-1956). Earlier collections by Cooper (1894), and Howard (1955)
Primary reference: 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]more details
Purpose of describing collection: general faunal/floral analysis
PaleoDB collection 37947: authorized by Austin Hendy, entered by Austin Hendy on 27.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Echinoidea | |
Strongylocentrotus purpuratus Stimpson 1857 sea urchin | |
Rhynchonellata | |
Terebratalia cf. transversa Sowerby 1846 | |
Polychaeta | |
Polyplacophora | |
Mopalia muscova chiton
Mopalia hindsii Sowerby 1847 chiton | |
Stenoplax sp. Carpenter 1879 chiton
Tonicella cf. lineata Wood 1815 lined red chiton | |
Bivalvia | |
Mytilus californianus, "Modiolus fornicatus" = Modiolus carpenteri
Mytilus californianus Conrad 1837 mussel
"Modiolus fornicatus" = Modiolus carpenteri Soot-Ryen 1963 mussel | |
"Glycymeris subobsoleta" = Glycymeris septentrionalis
"Glycymeris subobsoleta" = Glycymeris septentrionalis Middendorf 1849 clam | |
"Arca sisquocensis" = Arca (Arca) sisquocensis
"Arca sisquocensis" = Arca (Arca) sisquocensis Reinhart 1937 ark | |
"Hinnites giganteus" = Crassadoma gigantea, "Chlamys hastatus" = Chlamys hastata
"Hinnites giganteus" = Crassadoma gigantea Gray 1825 scallop
"Chlamys hastatus" = Chlamys hastata Sowerby 1842 scallop | |
"Glans subquadrata" = Glans carpenteri, Milneria minima
"Glans subquadrata" = Glans carpenteri Lamy 1922 clam
Milneria minima Dall 1871 clam | |
Epilucina californica Conrad 1837 clam | |
Penitella penita Conrad 1837 clam
Parapholas cf. californica Conrad 1837 clam | |
"Lasaea cf. cistula" = Lasaea adansoni
"Lasaea cf. cistula" = Lasaea adansoni Gmelin 1791 clam | |
"Clinocardium nuttallii" = Clinocardium (Clinocardium) nuttallii
"Clinocardium nuttallii" = Clinocardium (Clinocardium) nuttallii Conrad 1837 cockle | |
Cumingia californica Conrad 1837 clam | |
"Gari californica" = Gari (Gobraeus) californica
"Gari californica" = Gari (Gobraeus) californica Conrad 1849 clam | |
Diplodonta orbella Gould 1851 clam | |
"Irus lamellifer" = Irusella lamellifera, "Protothaca staminea" = Leukoma staminea, "Ventricolaria fordii" = Globivenus fordii, Humilaria perlaminosa, "Transennella tantilla" = Nutricola tantilla, Saxidomus nuttalli, "Petricola carditoides" = Petricola (Petricola) carditoides
"Irus lamellifer" = Irusella lamellifera Conrad 1837 venus clam
"Protothaca staminea" = Leukoma staminea Conrad 1837 venus clam
"Ventricolaria fordii" = Globivenus fordii Yates 1890 venus clam
Humilaria perlaminosa Conrad 1855 venus clam
"Transennella tantilla" = Nutricola tantilla Gould 1853 venus clam
Saxidomus nuttalli Conrad 1837 venus clam
"Petricola carditoides" = Petricola (Petricola) carditoides Conrad 1837 venus clam | |
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"Schizothaerus nuttalli" = Tresus nuttallii
"Schizothaerus nuttalli" = Tresus nuttallii Conrad 1837 clam | |
Hiatella cf. arctica, "Panope cf. generosa" = Panopea generosa
Hiatella cf. arctica Linnaeus 1767 clam
"Panope cf. generosa" = Panopea generosa Gould 1850 clam | |
Gastropoda | |
Puncturella cf. cooperi Carpenter 1864 puncturella
Diodora aspera Rathke 1833 snail | |
Haliotis cf. sorenseni abalone
Haliotis kamtschatkana abalone
Haliotis rufescens Swainson 1822 abalone
Haliotis cracherodii Leach 1814 abalone | |
"Astraea gibberosa" = Pomaulax gibberosa, "Pupillaria cf. succincta" = Margarites (Pupillaria), "Pupillaria cf. oldroydi" = Margarites (Pupillaria), Arene acuticostata, "Homalopoma carpenteri" = Homalopoma (Homalopoma) luridum, Homalopoma cf. baculum
"Astraea gibberosa" = Pomaulax gibberosa Dillwyn 1817 red turban
"Pupillaria cf. succincta" = Margarites (Pupillaria) snail
"Pupillaria cf. oldroydi" = Margarites (Pupillaria) snail
Arene acuticostata snail
"Homalopoma carpenteri" = Homalopoma (Homalopoma) luridum Dall 1885 snail
Homalopoma cf. baculum Carpenter 1864 snail | |
"Tegula pulligo" = Promartynia pulligo
"Tegula pulligo" = Promartynia pulligo Gmelin 1791 snail | |
Calliostoma cf. ligatum, "Tegula funebralis" = Chlorostoma funebrale, "Tegula brunnea" = Chlorostoma brunnea, "Pupillaria cf. optabilis" = Lirularia optabilis, Halistylus pupoideus
Calliostoma cf. ligatum Gould 1849 top snail
"Tegula funebralis" = Chlorostoma funebrale Adams 1855 top snail
"Tegula brunnea" = Chlorostoma brunnea Philippi 1849 top snail
"Pupillaria cf. optabilis" = Lirularia optabilis Carpenter 1864 top snail
Halistylus pupoideus Carpenter 1864 top snail | |
"Tricolia cf. pulloides" = Eulithidium pulloides
"Tricolia cf. pulloides" = Eulithidium pulloides Carpenter 1865 snail | |
Liotia fenestrata Carpenter 1864 snail | |
Odostomia cf. oldroydi, Odostomia phanella, Odostomia cf. virginalis, Odostomia cf. sapia, Odostomia cf. sanctorum, Odostomia cf. io, Turbonilla cf. valdezi
Odostomia cf. oldroydi snail
Odostomia phanella snail
Odostomia cf. virginalis snail
Odostomia cf. sapia snail
Odostomia cf. sanctorum snail
Odostomia cf. io Dall and Bartsch 1909 snail
Turbonilla cf. valdezi Dall and Bartsch 1907 snail | |
Trimusculus reticulatus Sowerby 1835 button snail | |
"Acmaea pelta" = Lottia pelta, "Acmaea digitalis" = Lottia digitalis, "Acmaea scutum" = Lottia scutum, "Acmaea scabra" = Lottia scabra, "Acmaea limatula" = Lottia limatula, Acmaea sp. n. sp., Acmaea mitra, Acmaea funiculata
"Acmaea pelta" = Lottia pelta Eschscholtz 1833 limpet
"Acmaea digitalis" = Lottia digitalis Eschscholtz 1833 limpet
"Acmaea scutum" = Lottia scutum Eschscholtz 1833 limpet
"Acmaea scabra" = Lottia scabra Gould 1846 limpet
"Acmaea limatula" = Lottia limatula Carpenter 1864 limpet
Acmaea sp. n. sp. Eschscholtz 1830 limpet
Acmaea mitra Eschscholtz 1833 limpet
Acmaea funiculata Carpenter 1864 limpet | |
"Balcis cf. thersites" = Melanella thersites, "Balcis cf. prefalcata" = Vitreolina macra
"Balcis cf. thersites" = Melanella thersites Carpenter 1864 snail
"Balcis cf. prefalcata" = Vitreolina macra Bartsch 1917 snail | |
"Bittium eschrichtii" = Neostylidium eschrichtii
"Bittium eschrichtii" = Neostylidium eschrichtii Middendorff 1849 cerith snail Subspecies: Bittium eschrichtii montereyense
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"Bittium armillatum" = Lirobittium armillatum, "Bittium cf. attenuatum" = Lirobittium attenuatum
"Bittium armillatum" = Lirobittium armillatum Carpenter 1864 snail
"Bittium cf. attenuatum" = Lirobittium attenuatum Carpenter 1864 snail | |
"Littorina scutulata" = Littorina (Littorina) scutulata, "Lacuna cf. carinata" = Lacuna (Epheria) carinata, "Lacuna unifasciata" = Lacuna (Epheria) unifasciata, "Littorina planaxis" = Littorina (Neritrema) keenae
"Littorina scutulata" = Littorina (Littorina) scutulata Gould 1849 periwinkle
"Lacuna cf. carinata" = Lacuna (Epheria) carinata Gould 1848 periwinkle
"Lacuna unifasciata" = Lacuna (Epheria) unifasciata Carpenter 1857 periwinkle
"Littorina planaxis" = Littorina (Neritrema) keenae Rosewater 1978 periwinkle | |
"Cryptonatica cf. clausa" = Cryptonatica affinis, "Lunatia cf. lewisii" = Euspira lewisii
"Cryptonatica cf. clausa" = Cryptonatica affinis Gmelin 1791 moon snail
"Lunatia cf. lewisii" = Euspira lewisii Gould 1847 moon snail | |
Hipponix tumens Carpenter 1864 hoof shell | |
Rissoina cf. hannai, Rissoina cf. bakeri, ""Rissoina" cf. aequisculpta" = Alvinia aequisculpta, "Alvania purpurea" = Alvinia purpurea, "Alvania cf. oldroydae" = Actonia oldroydae, "Alvania cf. acutelirata" = Actonia compacta, Alvania aff. dinora, Alvania cf. lirata, Alvania sp. n. sp., "Rissoina aff. dalli" = Zebina dalli
Rissoina cf. hannai snail
Rissoina cf. bakeri snail
""Rissoina" cf. aequisculpta" = Alvinia aequisculpta Keep 1887 snail
"Alvania purpurea" = Alvinia purpurea Dall 1871 snail
"Alvania cf. oldroydae" = Actonia oldroydae Bartsch 1911 snail
"Alvania cf. acutelirata" = Actonia compacta Carpenter 1864 snail
Alvania aff. dinora snail
Alvania cf. lirata snail
Alvania sp. n. sp. Risso 1826 snail
"Rissoina aff. dalli" = Zebina dalli Bartsch 1915 snail | |
Amphithalamus cf. tenuis, Amphithalamus inclusus, Barleeia cf. oldroydae, Barleeia subtenuis, "Rissoina cf. coronadoensis" = Barleeia coronadoensis, ""Diala" cf. marmorea" = Pseudodiala acuta
Amphithalamus cf. tenuis Bartsch 1911 snail
Amphithalamus inclusus Lozouet 1998 snail
Barleeia cf. oldroydae snail
Barleeia subtenuis Carpenter 1864 snail
"Rissoina cf. coronadoensis" = Barleeia coronadoensis Bartsch 1920 snail
""Diala" cf. marmorea" = Pseudodiala acuta Carpenter 1864 snail | |
"Fartulum occidentale" = Fartulum dextroversum, "Caecum dalli" = Caecum quadratum, Caecum californicum
"Fartulum occidentale" = Fartulum dextroversum Carpenter 1857 snail
"Caecum dalli" = Caecum quadratum Carpenter 1857 snail
Caecum californicum Dall 1885 snail | |
Assiminea transluscens snail | |
"Spiroglyphus lituellus" = Dendropoma lituella, "Aletes squamigerus" = Thylacodes squamigerus, Petaloconchus anellum, Petaloconchus complicatus
"Spiroglyphus lituellus" = Dendropoma lituella Morch 1861 worm shell
"Aletes squamigerus" = Thylacodes squamigerus Carpenter 1857 worm shell
Petaloconchus anellum worm shell
Petaloconchus complicatus Dall 1908 worm shell | |
"Velutina aff. laevigata" = Velutina velutina, "Lamellaria rhombica" = Marsenina rhombica
"Velutina aff. laevigata" = Velutina velutina Müller 1776 snail
"Lamellaria rhombica" = Marsenina rhombica Dall 1871 snail | |
"Barbarofusus ? arnoldi" = Harfordia arnoldi
"Barbarofusus ? arnoldi" = Harfordia arnoldi Cossmann 1903 snail | |
"Mitra idae" = Mitra (Atrimitra) idae
"Mitra idae" = Mitra (Atrimitra) idae Melville 1893 mitre shell | |
"Mitromorpha cf. gracilior" = Cymakra gracilior, "Mitromorpha aspera" = Cymakra aspera
"Mitromorpha cf. gracilior" = Cymakra gracilior Tryon 1884 snail
"Mitromorpha aspera" = Cymakra aspera Carpenter 1864 snail | |
"Mitrella carinata" = Alia carinata Hinds 1844 dovesnail
Amphissa versicolor Dall 1871 snail
Mitrella tuberosa Carpenter 1864 snail | |
"Searlesia" dira Reeve 1846 true whelk | |
Calicantharus fortis Carpenter 1866 snail | |
"Olivella biplicata" = Callianax biplicata
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail | |
"Mitromorpha cf. filosa" = Mitromorpha carpenteri
"Mitromorpha cf. filosa" = Mitromorpha carpenteri Glibert 1954 snail | |
"Conus californicus" = Californiconus californicus
"Conus californicus" = Californiconus californicus Reeve 1844 cone shell | |
"Mangelia interfossa" = Perimangelia interfossa, "Mangelia cf. nitens" = Cythara (Mangelia), "Mangelia aff. rhyssa" = Cythara (Mangelia), "Mangelia variegata" = Tenaturris variegata
"Mangelia interfossa" = Perimangelia interfossa Carpenter 1864 snail
"Mangelia cf. nitens" = Cythara (Mangelia) snail
"Mangelia aff. rhyssa" = Cythara (Mangelia) snail
"Mangelia variegata" = Tenaturris variegata Carpenter 1864 snail | |
Pseudomelatoma cf. torosa Gabb 1864 snail | |
"Gibberulina pyriformis" = Granulina margaritula
"Gibberulina pyriformis" = Granulina margaritula Carpenter 1857 snail | |
"Ocenebra cf. interfossa" = Paciocinebrina interfossa, "Ocenebra foveolata" = Paciocinebrina foveolata, "Ocenebra cf. lurida" = Paciocinebrina lurida, Ceratostoma foliatum
"Ocenebra cf. interfossa" = Paciocinebrina interfossa Carpenter 1864 murex snail Subspecies: Ocenebra interfossa clathrata
"Ocenebra foveolata" = Paciocinebrina foveolata Hinds 1844 murex snail
"Ocenebra cf. lurida" = Paciocinebrina lurida Middendorff 1848 murex snail
Ceratostoma foliatum Gmelin 1791 murex snail | |
"Triphora cf. pedroana" = Monophorus pedroanus, "Metaxia cf. diadema" = Metaxia convexa
"Triphora cf. pedroana" = Monophorus pedroanus Bartsch 1907 snail
"Metaxia cf. diadema" = Metaxia convexa Cerpenter 1857 snail | |
Crepidula perforans, Crepidula onyx, Crepidula adunca, Crepidula cf. excavata, Crepidula princeps, Crepipatella lingulata
Crepidula perforans Valenciennes 1846 slipper shell
Crepidula onyx Sowerby 1824 slipper shell
Crepidula adunca Sowerby 1824 slipper shell
Crepidula cf. excavata Broderip 1834 slipper shell
Crepidula princeps Conrad 1855 slipper shell
Crepipatella lingulata Gould 1846 slipper shell | |
"Siphonaria" brannani pulmonate | |
Thecostraca | |
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Balanus cf. nutibilis barnacle
Balanus sp. Da Costa 1778 barnacle |