UCMP Loc. A1707, Travertine Rock [Latrania Sand Mbr, Imperial Fm] (Pliocene of the United States)

Where: San Diego County, California (33.4° N, 116.1° W: paleocoordinates 33.2° N, 115.3° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Latrania Sand Member (Imperial Formation), Early/Lower Pliocene (5.3 - 3.6 Ma)

• STRATIGRAPHIC RELATIONS: From the Latrania Sand Mbr of Imperial Fm, which is overlain by the Canebrake Conglomerate. AGE: Pliocene, on the basis of molluscan biostratigraphy; placed by enterer in Early Pliocene based on existing collections and similarity with Late Miocene assemblages in California. STRATIGRAPHIC POSITION: From unknown position within member.

• bed-level stratigraphic resolution

Environment/lithology: coastal; lithified, medium-grained, coarse, yellow sandstone

• SPECIFIC LITHOLOGY: Yellow, fossiliferous, medium- to coarse-grained sandstone. LITHIFICATION: Lithified, based on figured specimens.

Size class: macrofossils

Preservation: replaced with calcite

Collected by Bramkamp in 1937; reposited in the UCMP

• COLLECTORS: R. Bramkampr, 1937. REPOSITORY: UCMP.

Primary reference: C. L. Powell. 2008. Pliocene Invertebrates From the Travertine Point Outcrop of the Imperial Formation, Imperial County, California. United States Geological Survey Scientific Investigations 2008(5155):1-25 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 96554: authorized by Austin Hendy, entered by Austin Hendy on 11.06.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for molluscs. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
Gastropoda
 Cerithioidea - Turritellidae
? Turritella sp. Lamarck 1799 turret shell
Bivalvia
 Mytilida - Mytilidae
? Mytilus sp. Linnaeus 1758 mussel
 Pectinida - Pectinoidae
Spondylus sp. Linnaeus 1758 scallop
Euvola cf. keepi Arnold 1906 scallop
Argopecten sp. Monterosato 1889 calico scallop
 Ostreida - Ostreidae
? Dendostrea vespertina Conrad 1855 oyster
 Ostreida - Gryphaeidae
? Pycnodonte heermanni Conrad 1855 oyster
 Arcida - Arcidae
Barbatia sp. Gray 1842 clam
Arca sp. Linnaeus 1758 ark
Arca cf. pacifica Sowerby 1833 ark
Anadara cf. reinharti Lowe 1935 ark
 Arcida - Glycymerididae
"Glycymeris gigantea" = Glycymeris (Glycymeris) gigantea
"Glycymeris gigantea" = Glycymeris (Glycymeris) gigantea Reeve 1843 clam
 Cardiida - Chamidae
Arcinella cf. californica Dall 1903 jewel box
 Cardiida - Veneridae
Dosinia cf. semiobliterata Deshayes 1853 venus clam
 Lucinida - Lucinidae
Codakia distinguenda Tryon 1872 clam
Pegophysema edentuloides Verrill 1901 clam
Lucinisca nuttalli Conrad 1837 clam
Spelt in table "Lucina nuttalli", in text as "Lucinisca nuttalli"
 Carditida - Carditidae
Eucrassatella antillarum
  -
"Eucrassatella cf. antillarum" = Kalolophus antillarum
"Eucrassatella cf. antillarum" = Kalolophus antillarum Reeve 1842