Atlantico [Usiacurí Fm] (Miocene of Colombia)

Where: Colombia (10.8° N, 75.0° W: paleocoordinates 10.4° N, 73.5° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Usiacurí Formation, Late/Upper Miocene (11.6 - 5.3 Ma)

• LITHOSTRATIGRAPHY: From the Usiacurí Formation, for which lithsotratigraphic relations are not discussed. AGE: Late Miocene. STRATIGRAPHIC POSITION: From unknown position within section.

• formation-level stratigraphic resolution

Environment/lithology: marine; siliciclastic sediments

• No paleoenvironmental data provided.
• LITHIFICATION: Unknown. LITHOLOGY: No lithologic data provided, but assumed to be siliciclastic.

Size class: macrofossils

Collection methods: quarrying,


Primary reference: W. P. Woodring. 1982. Geology and paleontology of canal zone and adjoing parts of Panama: Description of Tertiary mollusks (Pelecypods: Propeamussiidae to Cuspidariidae). United States Geological Survey Professional Paper 306(F) [A. Miller/A. Hendy/A. Hendy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 96500: authorized by Austin Hendy, entered by Austin Hendy on 09.06.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

• COVERAGE: Limited to taxa miscellaneously mentioned in text. NOMENCLATURE: Authoritative publication, with modern nomenclature, and species-resolution identifications.
 Arcida - Arcidae
Anadara (Grandiarca) grandis2 Broderip and Sowerby 1829 ark
SUBSPECIES: Anadara (Grandiarca) grandis colombiensis
 Pectinida - Pectinoidae
Amusium toulae Brown and Pilsbry 1911 scallop
 Cardiida - Mactridae
Harvella elegans Sowerby 1825 clam
Mulinia cleryana d'Orbigny 1847 clam
 Cardiida - Tellinidae
Florimetis trinitaria Dall 1900 tellin clam
 Neogastropoda - Nassariidae
Gordanops baranoanus1 Anderson 1929 snail
 Neogastropoda - Melongenidae
Melongena consors1 Sowerby 1850 snail
 Architectonicoidea - Architectonicidae
Architectonica nobilis1 Röding 1798 sundial