USGS M1691, Santa Cruz (Pleistocene of the United States)
Where: Santa Cruz County, California (37.0° N, 122.0° W: paleocoordinates 37.0° N, 122.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Late/Upper Pleistocene (0.1 - 0.0 Ma)
• From Pleistocene marine terrace. Terrace is exposed about 15 ft above sea level. It is cut into fossiliferous sandstone of the Pliocene Purisima Formation. Radiocardbon dates from bivalve shells in this area yielded dates older than 39,000 years
• bed-level stratigraphic resolution
Environment/lithology: coastal; poorly lithified sandstone
• A Pleistocene terrace shellbed, hence transgressive.
• Original sand deposits are preserved at locality M1691 as pockets underneath and between large, rather flat boulders of calcareous sandstone - probably concretions weathering out of the underlying Purism Formation.
Size class: macrofossils
Reposited in the UCMP, USNM
Collection methods: bulk, quarrying, sieve,
• Figured specimens at USNM, unfigured specimens likely at UCMP (transferred from USGS Menlo Park).
Primary reference: W. O. Addicott. 1966. Late Pleistocene marine paleoecology and zoogeography on Central California. United States Geological Survey Professional Paper 523-C:1-27 [A. Miller/A. Hendy/M. Clapham]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 37673: authorized by Austin Hendy, entered by Austin Hendy on 20.03.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
• Detailed and representative for macrofossil taxa
Show authors, comments, and common names
| Thecostraca | |
|
Balanus ? crenatus Bruguière 1789 barnacle | |
| Polyplacophora | |
|
Mopalia ciliata Sowerby 1840 chiton | |
| Bivalvia | |
|
Cryptomya californica Conrad 1837 softshell clam
Platyodon cancellatus Conrad 1837 softshell clam | |
|
Penitella penita Conrad 1837 clam | |
"Protothaca staminea" = Leukoma staminea, "Petricola carditoides" = Petricola (Petricola) carditoides, Saxidomus giganteus, "Transennella tantilla" = Nutricola tantilla
"Protothaca staminea" = Leukoma staminea Conrad 1837 venus clam
"Petricola carditoides" = Petricola (Petricola) carditoides Conrad 1837 venus clam
Saxidomus giganteus Deshayes 1839 venus clam
"Transennella tantilla" = Nutricola tantilla Gould 1853 venus clam | |
"Tresus nuttalli" = Tresus nuttallii
"Tresus nuttalli" = Tresus nuttallii Conrad 1837 clam | |
"Tellina buttoni" = Ameritella modesta
"Tellina buttoni" = Ameritella modesta Carpenter 1864 tellin clam | |
"Clinocardium nuttallii" = Clinocardium (Clinocardium) nuttallii
"Clinocardium nuttallii" = Clinocardium (Clinocardium) nuttallii Conrad 1837 cockle [entered as Clinocardium nuttalli]
| |
|
Siliqua aff. patula Dixon 1789 clam | |
|
Ostrea sp. Linnaeus 1758 oyster | |
"Chlamys cf. herica" = Chlamys hastata
"Chlamys cf. herica" = Chlamys hastata Sowerby 1842 scallop | |
|
Adula californiensis Philippi 1847 datemussel
Adula cf. diegensis Dall 1911 datemussel | |
| Gastropoda | |
Diodora aspera, "Megatebennus bimaculatus" = Fissurellidea bimaculata
Diodora aspera Rathke 1833 snail
"Megatebennus bimaculatus" = Fissurellidea bimaculata Dall 1871 snail | |
|
Calliostoma cf. doliarum top snail
Calliostoma ligatum Gould 1849 top snail | |
|
"Iselica fenestrata" = Iselica ovoidea Gould 1853 snail
Odostomia avellana snail
Odostomia sp. Fleming 1817 snail | |
|
Diaphana brunnea snail | |
|
Serpulorbis sp. Sasso 1827 worm shell | |
"Fartulum occidentale" = Fartulum dextroversum
"Fartulum occidentale" = Fartulum dextroversum Carpenter 1857 snail | |
Polinices sp., "Cryptonatica ? clausa" = Cryptonatica affinis
Polinices sp. Monfort 1810 moon snail
"Cryptonatica ? clausa" = Cryptonatica affinis Gmelin 1791 moon snail | |
"Lacuna carinata" = Lacuna (Epheria) carinata, "Lacuna solidula" = Lacuna (Epheria) carinata
"Lacuna carinata" = Lacuna (Epheria) carinata Gould 1848 periwinkle
"Lacuna solidula" = Lacuna (Epheria) carinata Gould 1848 periwinkle Subspecies: Lacuna solidula compacta
| |
"Barleeia marmorea" = Pseudodiala acuta
"Barleeia marmorea" = Pseudodiala acuta Carpenter 1864 snail | |
"Cerithiopsis cf. stejnegeri" = Cerithiopsis stejnegeri, "Cerithiopsis paramoea" = Cerithiopsis stejnegeri
"Cerithiopsis cf. stejnegeri" = Cerithiopsis stejnegeri Dall 1884 snail
"Cerithiopsis paramoea" = Cerithiopsis stejnegeri Dall 1884 snail | |
|
? Oenopota tabulata cone shell | |
"Olivella biplicata" = Callianax biplicata
"Olivella biplicata" = Callianax biplicata Sowerby 1825 olive snail | |
"Acanthina spirata" = Acanthinucella spirata, "Ocenebra interfossa" = Paciocinebrina interfossa, "Ocenebra cf. lurida" = Paciocinebrina lurida, Thais lamellosa
"Acanthina spirata" = Acanthinucella spirata Blainville 1832 murex snail
"Ocenebra interfossa" = Paciocinebrina interfossa Carpenter 1864 murex snail
"Ocenebra cf. lurida" = Paciocinebrina lurida Middendorff 1848 murex snail Subspecies: Ocenebra cf. lurida mun
Thais lamellosa Gmelin 1791 murex snail | |
|
Mitrella cf. tuberosa Carpenter 1864 snail
Amphissa columbiana Dall 1916 snail
"Mitrella carinata" = Alia carinata Hinds 1844 dovesnail | |
"Nassarius fossatus" = Caesia fossatus, "Nassarius mendicus" = Hima mendica
"Nassarius fossatus" = Caesia fossatus Gould 1849 snail | |
|
Searlesia dira Reeve 1846 true whelk | |
"Velutina laevigata" = Velutina velutina
"Velutina laevigata" = Velutina velutina Müller 1776 snail | |
|
Bittium eschrichti cerith snail | |
|
Crepidula nummaria Gould 1846 slipper shell
Crepidula adunca Sowerby 1824 slipper shell | |
|
Balcis cf. micans Carpenter 1864 snail | |
|
Acmaea sp. Eschscholtz 1830 limpet | |
| Echinoidea | |
|
Strongylocentrotus sp. Brandt 1835 sea urchin | |