Also known as Vedder & Norris (1963) SN-5
Where: Ventura County, California (33.2° N, 119.6° 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 37945: authorized by Austin Hendy, entered by Austin Hendy on 27.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
unclassified | |
Echinoidea | |
Strongylocentrotus cf. franciscanus Agassiz 1863 sea urchin | |
Polyplacophora | |
Mopalia muscosa Gould 1846 chiton | |
Gastropoda | |
Crepidula cf. onyx Sowerby 1824 slipper shell | |
"Bittium eschrichtii" = Neostylidium eschrichtii
"Bittium eschrichtii" = Neostylidium eschrichtii Middendorff 1849 cerith snail Subspecies: Bittium eschrichtii montereyense
| |
Cerithiopsis sp. Hanley 1849 snail | |
"Lacuna ? unifasciata" = Lacuna (Epheria) unifasciata
"Lacuna ? unifasciata" = Lacuna (Epheria) unifasciata Carpenter 1857 periwinkle | |
Barleeia cf. oldroydae snail
Barleeia cf. subtenuis Carpenter 1864 snail
""Diala" cf. marmorea" = Pseudodiala acuta Carpenter 1864 snail | |
Alvania sp. n. sp., "Alvania purpurea" = Alvinia purpurea
Alvania sp. n. sp. Risso 1826 snail
"Alvania purpurea" = Alvinia purpurea Dall 1871 snail | |
Petaloconchus anellum, "Spiroglyphus cf. lituellus" = Dendropoma lituella
Petaloconchus anellum worm shell
"Spiroglyphus cf. lituellus" = Dendropoma lituella Morch 1861 worm shell | |
"Olivella biplicata" = Callianax biplicata
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail | |
"Mitra idae" = Mitra (Atrimitra) idae
"Mitra idae" = Mitra (Atrimitra) idae Melville 1893 mitre shell | |
Calicantharus fortis Carpenter 1866 snail | |
"Searlesia" dira Reeve 1846 true whelk | |
"Mitrella carinata" = Alia carinata, "Mitrella cf. carinata" = Alia carinata
"Mitrella carinata" = Alia carinata Hinds 1844 dovesnail
"Mitrella cf. carinata" = Alia carinata Hinds 1844 dovesnail Subspecies: Mitrella carinata gausapata
| |
"Ocenebra cf. lurida" = Paciocinebrina lurida
"Ocenebra cf. lurida" = Paciocinebrina lurida Middendorff 1848 murex snail | |
"Barbarofusus ? arnoldi" = Harfordia arnoldi
"Barbarofusus ? arnoldi" = Harfordia arnoldi Cossmann 1903 snail | |
Pseudomelatoma ? torosa Gabb 1864 snail | |
"Conus cf. californicus" = Californiconus californicus
"Conus cf. californicus" = Californiconus californicus Reeve 1844 cone shell | |
"Mangelia cf. variegata" = Tenaturris variegata
"Mangelia cf. variegata" = Tenaturris variegata Carpenter 1864 snail | |
Caecum californicum Dall 1885 snail | |
"Bittium cf. attenuatum" = Lirobittium attenuatum
"Bittium cf. attenuatum" = Lirobittium attenuatum Carpenter 1864 snail | |
"Tegula funebralis" = Chlorostoma funebrale, ""Tegula" ? montereyi" = Chlorostoma montereyi
"Tegula funebralis" = Chlorostoma funebrale Adams 1855 top snail
""Tegula" ? montereyi" = Chlorostoma montereyi Kiener 1850 top snail | |
"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 | |
Diodora cf. aspera Rathke 1833 snail | |
Haliotis cf. cracherodii Leach 1814 abalone | |
"Acmaea limatula" = Lottia limatula, "Acmaea scabra" = Lottia scabra, "Acmaea pelta" = Lottia pelta, Acmaea sp. n. sp., Acmaea mitra
"Acmaea limatula" = Lottia limatula Carpenter 1864 limpet
"Acmaea scabra" = Lottia scabra Gould 1846 limpet
"Acmaea pelta" = Lottia pelta Eschscholtz 1833 limpet
Acmaea sp. n. sp. Eschscholtz 1830 limpet
Acmaea mitra Eschscholtz 1833 limpet | |
Bivalvia | |
"Lasaea cf. cistula" = Lasaea adansoni
"Lasaea cf. cistula" = Lasaea adansoni Gmelin 1791 clam | |
"Transennella tantilla" = Nutricola tantilla
"Transennella tantilla" = Nutricola tantilla Gould 1853 venus clam | |
Cumingia californica Conrad 1837 clam | |
"Clinocardium nuttallii" = Clinocardium (Clinocardium) nuttallii
"Clinocardium nuttallii" = Clinocardium (Clinocardium) nuttallii Conrad 1837 cockle | |
Epilucina californica Conrad 1837 clam | |
Mytilus californianus Conrad 1837 mussel | |
Thecostraca | |
Balanus cf. nubilis barnacle | |
Anthozoa | |
Balanophyllia elegans Verrill 1864 stony coral |