CAS Loc. 325, Usiacuri, east of [Tubará Fm] (Pliocene of Colombia)

Where: Atlántico, Colombia (10.8° N, 75.0° W: paleocoordinates 10.6° N, 74.2° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• LITHOSTRATIGRAPHY: From the Tubará Formation, which overlies the Las Pedices Group (Early Miocene), and is overlain by the Galapa Group (Late Miocene). AGE: Early Miocene, according Barrios (1960), but assigned by the enterer to the Early Pliocene based on more recent biostratigraphic correlations. STRATIGRAPHIC POSITION: From unknown position within section.

• bed-level stratigraphic resolution

Environment/lithology: marine; poorly lithified siliciclastic sediments

• SPECIFIC LITHOLOGY: Not stated in text, but apparently siliciclastic. LITHIFICATION: Poorly-lithified-unlithified, on the basis of figured specimens.

Size class: macrofossils

Collected by Andeson

Collection methods: surface (in situ),

• COLLECTOR: F. Andeson, c. 1920's. REPOSITORY: California Academy of Sciences (CAS).

Primary reference: F. M. Anderson. 1929. Marine Miocene and related deposits of North Colombia. Proceedings of the Academy of Sciences 18(4):73-213 [A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 88310: authorized by Austin Hendy, entered by Austin Hendy on 06.04.2009

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Exhaustive for bivalves and gastropods. NOMENCLATURE: Authoritative publication, with somewhat antiquated nomenclature, but with species-resolution identifications.
Bivalvia
 Arcida - Glycymerididae
"Glycymeris usiacurii n. sp." = Tucetona usiacurii
"Glycymeris usiacurii n. sp." = Tucetona usiacurii Anderson 1929 clam
 Cardiida - Anatinellidae
Raeta hasletti Anderson 1929 clam
 Cardiida - Ungulinidae
"Diplodonta woodringi" = Diplodonta (Diplodonta) woodringi
"Diplodonta woodringi" = Diplodonta (Diplodonta) woodringi Anderson 1929 clam
Gastropoda
 Neogastropoda - Nassariidae
"Phos baranoanus" = Gordanops baranoanus
"Phos baranoanus" = Gordanops baranoanus Anderson 1929 snail
 Neogastropoda - Terebridae
"Terebra cirra" = Terebra (Strioterebrum) cirrus Dall 1895 auger snail
 Naticoidea - Naticidae
"Natica guppyana" = Stigmaulax guppiana, "Polinices subclausa" = Polinices hepaticus, Polinices stanislasmeunieri
"Natica guppyana" = Stigmaulax guppiana Toula 1909 moon snail
"Polinices subclausa" = Polinices hepaticus Röding 1798 moon snail
Polinices stanislasmeunieri Maury 1917 moon snail
 Trochoidea - Trochidae
Calliostoma grabaui Maury 1917 top snail