Where: Puerto Rico (18.4° N, 67.0° W: paleocoordinates 17.6° N, 66.0° W)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Lares Limestone Formation, Late/Upper Oligocene (28.4 - 23.0 Ma)
• correlates with the Paynes Hammock (i.e., late Oligocene: see Dockerey 1986)
• bed-level stratigraphic resolution
Environment/lithology: marine; gray, calcareous shale
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 94195: authorized by John Alroy, entered by John Alroy on 10.02.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Ostracoda | |
Loxoconcha antillea ostracod | |
Cushmanidea howei ostracod | |
Orionina butlerae ostracod | |
Propontocypris sp. ostracod | |
Macrocypris sp. ostracod | |
Basslerites sp. ostracod | |
Jugosocythereis vicksburgensis ostracod
Jugosocythereis laresensis ostracod
Procythereis laresensis ostracod | |
Bairdia antillea ostracod
Bairdia condylus ostracod | |
Cytherelloidea sp. Alexander 1929 ostracod |