Also known as Vedder & Norris (1963) SN-14
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 Norris (1955). 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 37936: authorized by Austin Hendy, entered by Austin Hendy on 27.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Anthozoa | |
Balanophyllia elegans Verrill 1864 stony coral | |
Polyplacophora | |
Mopalia cf. hindsii Sowerby 1847 chiton
Mopalia muscosa Gould 1846 chiton | |
Gastropoda | |
"Tricolia cf. pulloides" = Eulithidium pulloides
"Tricolia cf. pulloides" = Eulithidium pulloides Carpenter 1865 snail | |
"Homalopoma carpenteri" = Homalopoma (Homalopoma) luridum, "Astraea cf. gibberosa" = Pomaulax gibberosa
"Homalopoma carpenteri" = Homalopoma (Homalopoma) luridum Dall 1885 snail
"Astraea cf. gibberosa" = Pomaulax gibberosa Dillwyn 1817 red turban | |
"Pupillaria cf. optabilis" = Lirularia optabilis
"Pupillaria cf. optabilis" = Lirularia optabilis Carpenter 1864 top snail | |
Fissurella volcano Reeve 1849 snail | |
Crepidula ? onyx Sowerby 1824 slipper shell
Crepidula adunca Sowerby 1824 slipper shell | |
"Bittium cf. eschrichtii" = Neostylidium eschrichtii
"Bittium cf. eschrichtii" = Neostylidium eschrichtii Middendorff 1849 cerith snail Subspecies: Bittium eschrichtii montereyense
| |
"Olivella biplicata" = Callianax biplicata
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail | |
Calicantharus fortis Carpenter 1866 snail | |
Amphissa versicolor Dall 1871 snail | |
"Mangelia aff. rhyssa" = Cythara (Mangelia), "Mangelia fuscoligata" = Cythara (Mangelia), "Mangelia variegata" = Tenaturris variegata
"Mangelia aff. rhyssa" = Cythara (Mangelia) snail
"Mangelia fuscoligata" = Cythara (Mangelia) snail
"Mangelia variegata" = Tenaturris variegata Carpenter 1864 snail | |
"Barbarofusus ? arnoldi" = Harfordia arnoldi
"Barbarofusus ? arnoldi" = Harfordia arnoldi Cossmann 1903 snail | |
"Gibberulina pyriformis" = Granulina margaritula
"Gibberulina pyriformis" = Granulina margaritula Carpenter 1857 snail | |
"Ocenebra cf. lurida" = Paciocinebrina lurida, "Ocenebra ? interfossa" = Paciocinebrina interfossa, Thais emarginata
"Ocenebra cf. lurida" = Paciocinebrina lurida Middendorff 1848 murex snail
"Ocenebra ? interfossa" = Paciocinebrina interfossa Carpenter 1864 murex snail Subspecies: Ocenebra interfossa clathrata
Thais emarginata murex snail | |
"Lacuna cf. unifasciata" = Lacuna (Epheria) unifasciata, "Littorina ? scutulata" = Littorina (Littorina) scutulata
"Lacuna cf. unifasciata" = Lacuna (Epheria) unifasciata Carpenter 1857 periwinkle
"Littorina ? scutulata" = Littorina (Littorina) scutulata Gould 1849 periwinkle | |
"Cryptonatica cf. clausa" = Cryptonatica affinis
"Cryptonatica cf. clausa" = Cryptonatica affinis Gmelin 1791 moon snail | |
""Rissoina" cf. aequisculpta" = Alvinia aequisculpta, "Alvania cf. oldroydae" = Actonia oldroydae
""Rissoina" cf. aequisculpta" = Alvinia aequisculpta Keep 1887 snail
"Alvania cf. oldroydae" = Actonia oldroydae Bartsch 1911 snail | |
Barleeia cf. oldroydi Bartsch 1920 snail
Barleeia subtenuis Carpenter 1864 snail
Amphithalamus tenuis Bartsch 1911 snail
Amphithalamus inclusus Lozouet 1998 snail | |
"Spiroglyphus cf. lituellus" = Dendropoma lituella
"Spiroglyphus cf. lituellus" = Dendropoma lituella Morch 1861 worm shell | |
Antisabia panamensis Adams 1852 hoof shell | |
"Fartulum occidentale" = Fartulum dextroversum, Fartulum cf. orcutti
"Fartulum occidentale" = Fartulum dextroversum Carpenter 1857 snail
Fartulum cf. orcutti Dall in Orcutt 1885 snail | |
Vitrinella cf. oldroydi Bartsch 1907 snail | |
"Bittium attenuatum" = Lirobittium attenuatum, "Bittium ? armillatum" = Lirobittium armillatum
"Bittium attenuatum" = Lirobittium attenuatum Carpenter 1864 snail
"Bittium ? armillatum" = Lirobittium armillatum Carpenter 1864 snail | |
"Acmaea limatula" = Lottia limatula Carpenter 1864 limpet
Acmaea sp. n. sp. Eschscholtz 1830 limpet
Acmaea mitra Eschscholtz 1833 limpet | |
Bivalvia | |
"Glycymeris cf. subobsoleta" = Glycymeris septentrionalis
"Glycymeris cf. subobsoleta" = Glycymeris septentrionalis Middendorf 1849 clam | |
"Pecten diegensis" = Leopecten diegensis
"Pecten diegensis" = Leopecten diegensis Dall 1898 scallop | |
Epilucina californica Conrad 1837 clam | |
"Lasaea cf. cistula" = Lasaea adansoni
"Lasaea cf. cistula" = Lasaea adansoni Gmelin 1791 clam | |
Saxidomus ? nuttalli Conrad 1837 venus clam
Turtonia cf. minuta Fabricius 1780 venus clam | |
Miodontiscus prolongatus Carpenter 1864 clam |