Also known as Sample A-6

Where: Antigua and Barbuda (17.0° N, 61.7° W: paleocoordinates 16.3° N, 60.8° 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; poorly lithified, calcareous sandstone

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 94184: authorized by John Alroy, entered by John Alroy on 10.02.2010

Creative Commons license: CC BY (attribution)