Public Works Department Hodge's Quarry (Sample A-2a) (Oligocene of Antigua and Barbuda)

Where: Antigua and Barbuda (17.2° N, 61.8° W: paleocoordinates 16.4° N, 60.9° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Globigerina ampliapertura to Globigerina optima optima foram zone, Antigua Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)

• according to van den Bold, "the Oligocene-Miocene boundary" is at the top of the Globorotalia ciperoensis zone, which is immediately younger than the Antigua Formation

•"in most cases" the forams were found "a few feet higher or lower" than the ostracodes

• bed-level stratigraphic resolution

Environment/lithology: marine; marl

• "thin marly band near the highest elevation of the quarry"

Size class: microfossils

Collected by W. A. van den Bold in 1964

• repository unclear

Primary reference: W. A. van den Bold. 1966. Ostracoda from the Antigua Formation (Oligocene, Lesser Antilles). Journal of Paleontology 40(5):1233-1236 [J. Alroy/J. Alroy]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 94178: authorized by John Alroy, entered by John Alroy on 10.02.2010

Creative Commons license: CC BY (attribution)

Taxonomic list

Ostracoda
 Platycopida - Cytherellidae
 Podocopida - Xestoleberididae
Xestoleberis sp. Sars 1866 ostracod
 Podocopida - Cytherideidae
? Parakrithella sp. Hanai 1959 ostracod
 Podocopida - Trachyleberididae
 Podocopida - Bairdiidae
Bairdia "sp. A" M'Coy 1844 ostracod
 Podocopida - Pontocyprididae