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 marl
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 94196: authorized by John Alroy, entered by John Alroy on 10.02.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Ostracoda | |
? Bythocypris gibsonensis Howe and Chambers 1935 ostracod | |
Bairdia antillea ostracod | |
Loxoconcha durhami ostracod
Loxoconcha antillea ostracod | |
Xestoleberis "sp. Butler" Sars 1866 ostracod | |
Cushmanidea howei ostracod
Haplocytheridea retifera n. sp. ostracod subspecies retifera and minor (type locality of H. retifera retifera)
| |
Kangarina sp. ostracod | |
Orionina butlerae ostracod | |
Paracypris cf. rosefieldensis Howe and Law 1936 ostracod | |
Macrocypris sp. ostracod | |
Jugosocythereis vicksburgensis, Jugosocythereis laresensis n. sp., Hermanites tschoppi, Procythereis laresensis, Quadracythere brachypygaia, "Quadracythere" sp., Aurila amygdala
Jugosocythereis vicksburgensis ostracod
Jugosocythereis laresensis n. sp. ostracod
Hermanites tschoppi ostracod
Procythereis laresensis ostracod
Quadracythere brachypygaia ostracod
"Quadracythere" sp. Hornibrook 1952 ostracod
Aurila amygdala ostracod |