Where: Puerto Rico (18.4° N, 67.0° W: paleocoordinates 18.2° N, 65.8° W)
• coordinate estimated from map
• hand sample-level geographic resolution
When: Cibao Marl Formation, Early/Lower Miocene (23.0 - 16.0 Ma)
• correlates with the upper Tampa and Chipola and older than the Choctawhatchee (i.e., early Miocene)
• bed-level stratigraphic resolution
Environment/lithology: marine; white 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 94204: authorized by John Alroy, entered by John Alroy on 10.02.2010
Creative Commons license: CC BY (attribution)
Taxonomic list
Ostracoda | |
Cytherella aff. pulchra ostracod | |
Macrocypris decora ostracod | |
Quadracythere antillea ostracod
? Procythereis deformis ostracod
Jugosocythereis vicksburgensis ostracod | |
Cativella aff. semitranslucens ostracod | |
| |
Xestoleberis dactylotypa ostracod
Xestoleberis "sp. C" Sars 1866 ostracod | |
Loxoconcha antillea ostracod
Loxoconcha cubensis ostracod | |
Gangamocytheridea reticulata ostracod | |
? Perissocytheridea sp. Stephenson 1938 ostracod | |