CAS Loc. 266, Quebrada San Juan de Acotsa [Tubará Fm] (Pliocene of Colombia)

Where: Colombia (11.0° N, 75.0° W: paleocoordinates 10.8° 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 88294: 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
 Ostreida - Gryphaeidae
"Ostrea haitensis" = Hyotissa haitensis
"Ostrea haitensis" = Hyotissa haitensis Sowerby 1850 oyster
 Cardiida - Cardiidae
"Cardium (Laevicardium) gorgasi" = Laevicardium serratum
"Cardium (Laevicardium) gorgasi" = Laevicardium serratum Linnaeus 1758 cockle
Gastropoda
 Neogastropoda - Turridae
"Pleurotoma barretti" = Polystira barretti
"Pleurotoma barretti" = Polystira barretti Guppy 1866 turrid
 Naticoidea - Naticidae
"Polinices subclausa" = Polinices hepaticus
"Polinices subclausa" = Polinices hepaticus Röding 1798 moon snail
 Architectonicoidea - Architectonicidae
"Architectonica granulata" = Architectonica nobilis
"Architectonica granulata" = Architectonica nobilis Röding 1798 sundial
 Trochoidea - Trochidae
"Calliostoma olssoni" = Calliostoma (Elmerlinia) olssoni
"Calliostoma olssoni" = Calliostoma (Elmerlinia) olssoni Maury 1925 top snail