Where: Puerto Rico (18.3° N, 67.0° W)

• Paleocoordinates: 19.2° N, 60.7° W (Wright 2013)

• coordinate estimated from map

• hand sample-level geographic resolution

When: San Sebastián Formation, Early/Lower Oligocene (33.9 - 27.3 Ma)

• correlates with the Vicksburg Group (i.e., early Oligocene)

• bed-level stratigraphic resolution

Environment/lithology: marine; gray claystone

Size class: microfossils

Collected by W. A. Gordon

Collection methods: bulk, chemical, sieve,

• Lousiana State University collection

•samples consist of "washed residues" that I assume were chemically treated because most come from presumably lithified marls and limestones

Primary reference: W. A. van den Bold. 1965. Middle Tertiary Ostracoda from northwestern Puerto Rico. Micropaleontology 11(4):381-414 [J. Alroy/J. Alroy]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 94188: authorized by John Alroy, entered by John Alroy on 10.02.2010

Creative Commons license: CC0 (CC0)