Also known as Vedder & Norris (1963) SN-7
Where: Ventura County, California (33.2° N, 119.5° 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 37943: authorized by Austin Hendy, entered by Austin Hendy on 27.03.2004
Creative Commons license: CC0 (CC0)
Taxonomic list
Anthozoa | |
Balanophyllia elegans Verrill 1864 stony coral | |
Bivalvia | |
"Hinnites giganteus" = Crassadoma gigantea
"Hinnites giganteus" = Crassadoma gigantea Gray 1825 scallop | |
Mytilus ? californianus Conrad 1837 mussel | |
Cumingia californica Conrad 1837 clam | |
"Transennella tantilla" = Nutricola tantilla, "Petricola carditoides" = Petricola (Petricola) carditoides
"Transennella tantilla" = Nutricola tantilla Gould 1853 venus clam
"Petricola carditoides" = Petricola (Petricola) carditoides Conrad 1837 venus clam | |
"Lasaea cf. cistula" = Lasaea adansoni
"Lasaea cf. cistula" = Lasaea adansoni Gmelin 1791 kelly clam | |
Bernardina bakeri Dall 1910 clam | |
Epilucina californica Conrad 1837 clam | |
"Glans subquadrata" = Glans carpenteri
"Glans subquadrata" = Glans carpenteri Lamy 1922 clam | |
Gastropoda | |
Macron lividus Adams 1855 snail | |
Crepidula onyx Sowerby 1824 slipper shell
Crepidula adunca Sowerby 1824 slipper shell
Crucibulum spinosum Conrad 1855 slipper shell
Bostrycapulus decorus Collin 2019 slipper shell | |
"Opalia cf. evicta" = Scalaria evicta, "Epitonium cf. indianorum" = Nitidiscala indianorum
"Opalia cf. evicta" = Scalaria evicta de Boury 1918 wentletrap
"Epitonium cf. indianorum" = Nitidiscala indianorum Carpenter 1864 wentletrap | |
"Searlesia" cf. dira Reeve 1846 true whelk | |
Calicantharus cf. fortis Carpenter 1866 snail | |
"Mitrella carinata" = Alia carinata Hinds 1844 dovesnail
Amphissa versicolor Dall 1871 snail
Mitrella tuberosa Carpenter 1864 snail | |
"Littorina scutulata" = Littorina (Littorina) scutulata
"Littorina scutulata" = Littorina (Littorina) scutulata Gould 1849 periwinkle | |
Petaloconchus anellum worm shell
Petaloconchus complicatus Dall 1908 worm shell
"Spiroglyphus lituellus" = Dendropoma lituella Morch 1861 worm shell | |
"Caecum dalli" = Caecum quadratum, Caecum cf. californicum, Fartulum cf. orcutti, "Fartulum occidentale" = Fartulum dextroversum
"Caecum dalli" = Caecum quadratum Carpenter 1857 snail
Caecum cf. californicum Dall 1885 snail
Fartulum cf. orcutti Dall in Orcutt 1885 snail
"Fartulum occidentale" = Fartulum dextroversum Carpenter 1857 snail | |
Vitrinella cf. oldroydi Bartsch 1907 snail | |
Antisabia panamensis Adams 1852 hoof shell | |
"Alvania purpurea" = Alvinia purpurea
"Alvania purpurea" = Alvinia purpurea Dall 1871 snail | |
Amphithalamus tenuis Bartsch 1911 snail
Barleeia cf. oldroydi Bartsch 1920 snail
Barleeia cf. subtenuis Carpenter 1864 snail | |
"Bittium cf. attenuatum" = Lirobittium attenuatum, "Bittium armillatum" = Lirobittium armillatum
"Bittium cf. attenuatum" = Lirobittium attenuatum Carpenter 1864 snail
"Bittium armillatum" = Lirobittium armillatum Carpenter 1864 snail | |
Lottia gigantea, "Acmaea cf. scabra" = Lottia scabra, "Acmaea cf. limatula" = Lottia limatula, "Acmaea scutum" = Lottia scutum, "Acmaea pelta" = Lottia pelta, "Acmaea digitalis" = Lottia digitalis, Acmaea mitra
Lottia gigantea Sowerby 1834 limpet
"Acmaea cf. scabra" = Lottia scabra Gould 1846 limpet
"Acmaea cf. limatula" = Lottia limatula Carpenter 1864 limpet
"Acmaea scutum" = Lottia scutum Eschscholtz 1833 limpet
"Acmaea pelta" = Lottia pelta Eschscholtz 1833 limpet
"Acmaea digitalis" = Lottia digitalis Eschscholtz 1833 limpet
Acmaea mitra Eschscholtz 1833 limpet | |
Trimusculus reticulatus Sowerby 1835 button snail | |
"Tricolia cf. pulloides" = Eulithidium pulloides
"Tricolia cf. pulloides" = Eulithidium pulloides Carpenter 1865 snail | |
"Homalopoma cf. carpenteri" = Homalopoma (Homalopoma) luridum
"Homalopoma cf. carpenteri" = Homalopoma (Homalopoma) luridum Dall 1885 snail | |
"Tegula funebralis" = Chlorostoma funebrale
"Tegula funebralis" = Chlorostoma funebrale Adams 1855 top snail | |
Diodora aspera Rathke 1833 snail | |
Haliotis cf. cracherodii Leach 1814 abalone | |
Polyplacophora | |
"Cryptochiton" stelleri Middendorf 1847 chiton | |
Thecostraca | |
Tetraclita ? squamosa Bruguière 1789 green volcano barnacle Subspecies: Tetraclita squamosa rubescens
| |
Echinoidea | |
Strongylocentrotus cf. franciscanus Agassiz 1863 sea urchin |