U.C.L.A. Loc. 5769, Elsmere Canyon [Towsley Fm] (Pliocene of the United States)

Where: Los Angeles County, California (34.4° N, 118.5° W: paleocoordinates 34.1° N, 117.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Towsley Formation, Early/Lower Pliocene (5.3 - 3.6 Ma)

• STRATIGRAPHIC RELATIONS: From the Towsley Fm, which unconformably overlies Eocene strata, and is overlain by the Pico Fm (Pliocene). AGE: Early Pliocene, on the basis of macrofossil biostratigraphy. STRATIGRAPHIC POSITION: From basal conglomerate in formation.

• bed-level stratigraphic resolution

Environment/lithology: coastal; poorly lithified conglomerate

• SPECIFIC LITHOLOGY: Conglomerate. LITHIFICATION: Variably lithified.

Size class: macrofossils

Collected by Kern

Collection methods: bulk, surface (in situ),

• COLLECTOR: J.P. Kern, c. 1970's. REPOSITORY: UCLA, California.

Primary reference: J. P. Kern. 1973. Early Pliocene marine climate and environment of the eastern Ventura Basin, Southern California. University of California Publications in Geological Sciences 96:1-117 [A. Hendy/A. Hendy/A. Hendy]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 97233: authorized by Austin Hendy, entered by Austin Hendy on 20.07.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for molluscs. NOMENCLATURE: An authoritative publication, with somewhat antiquated nomenclature, but with species-resolution identifications.
Bivalvia
 Arcida - Arcidae
"Arca terminumbonis" = Arca (Arca) terminumbonis
"Arca terminumbonis" = Arca (Arca) terminumbonis Grant and Gale 1931 ark
 Arcida - Glycymerididae
"Glycymeris profunda" = Glycymeris (Axinola) septentrionalis
"Glycymeris profunda" = Glycymeris (Axinola) septentrionalis Middendorf 1849 clam
 Pectinida - Pectinoidae
Patinopecten lohri Hertlein 1928 scallop
 Cardiida - Veneridae
"Chione (Anomalocardia) fernandoensis" = Chione (Securella) securis fernandoensis
"Chione (Anomalocardia) fernandoensis" = Chione (Securella) securis fernandoensis English 1914 venus clam
 Cardiida - Cardiidae
"Trachycardium quadragenarium" = Trachycardium (Dallocardia) quadragenarium
"Trachycardium quadragenarium" = Trachycardium (Dallocardia) quadragenarium Conrad 1837 cockle
 Lucinida - Lucinidae
Here excavata, "Lucinoma annulata" = Lucinoma annulatum
Here excavata Carpenter 1857 clam
"Lucinoma annulata" = Lucinoma annulatum Reeve 1850 clam
Gastropoda
 Neogastropoda - Buccinidae
Kelletia kelletii Forbes 1850 true whelk
 Neogastropoda - Nassariidae
 Neogastropoda - Cancellariidae
Cancellaria fernandoensis Arnold 1907 snail
 Neogastropoda - Muricidae
Forreria belcheri murex snail
 Neogastropoda - Conidae
"Conus californicus" = Californiconus californicus
"Conus californicus" = Californiconus californicus Reeve 1844 cone shell
 Ficoidea - Ficidae
 Naticoidea - Naticidae
"Neverita reclusiana" = Glossaulax reclusiana
"Neverita reclusiana" = Glossaulax reclusiana Deshayes 1839 moon snail
 Cypraeoidea - Cypraeidae
"Cypraea fernandoensis" = Zonaria (Neobernaya) spadicea
"Cypraea fernandoensis" = Zonaria (Neobernaya) spadicea Swainson 1823 cowry
 Sorbeoconcha - Turritellidae
Turritella cooperi Carpenter 1864 turret shell
Echinoidea
 Clypeasteroida - Echinarachniidae
Astrodapsis fernandoensis Pack 1909 sand dollar