Antigua [Antigua Fm] (Oligocene of Antigua and Barbuda)

Where: Antigua and Barbuda (17.2° N, 61.9° W: paleocoordinates 16.4° N, 60.9° W)

• coordinate based on nearby landmark

• local area-level geographic resolution

When: Antigua Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

• STRATIGRAPHIC RELATIONS: From the Antigua Fm. Lithostratigraphic relationships not discussed in publication. AGE: Late Oligocene according to text based on macro- and microfaunal biostratigraphy, and supported by more recent publications. THICKNESS: Formation attains a thickness of 1500 ft. STRATIGRAPHIC POSITION: From unknown position within formation.

• bed-level stratigraphic resolution

Environment/lithology: reef, buildup or bioherm; lithified, shelly/skeletal marl

• ENVIRONMENT: Carbonate environments, rich in coral and epifaunal molluscan taxa.
• SPECIFIC LITHOLOGY: White chalky or marly rock with hard layers (limestone). LITHIFICATION: Lithified, on the basis of facies description and figured specimens.

Size class: macrofossils

Preservation: original calcite, replaced with calcite

Collection methods: COLLECTOR: Unknown. REPOSITORY: Unknown.

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 96443: authorized by Austin Hendy, entered by Austin Hendy on 08.06.2010

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.
Gastropoda
 Architaenioglossa - Ampullinidae
Ampullinopsis spenceri Cooke 1919 snail
Bivalvia
 Cardiida - Veneridae
Periglypta tarquinia Dall 1900 venus clam
 Pectinida - Pectinoidae
Flabellipecten antiguensis Brown 1913 scallop
"Chlamys anguillensis" = Antillipecten anguillensis Guppy 1867 scallop