Sta. 61 - Rio Collazo [Collazo Shale]: Early/Lower Oligocene, Puerto Rico
collected by Reeds 1915
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
- Cardiida
- Veneridae
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Clementia rabelli
Maury 1920
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recombined as Clementia dariena rabelli | |||||||
Bivalvia
- Pholadida
- Teredinidae
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Teredo incrassata
(Gabb 1873)
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original and current combination Kuphus incrassatus | |||||||
Gastropoda
- Turritellidae
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Turritella altilira
Conrad 1857
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recombined as Turritella (Bactrospira) altilira | |||||||
see common names |
Geography
Country: | Puerto Rico |
Coordinates: | 18.3° North, 67.0° West (view map) |
Paleocoordinates: | 17.2° North, 66.3° West |
Basis of coordinate: | based on nearby landmark |
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Oligocene |
Stage: | Rupelian | 10 m.y. bin: | Cenozoic 4 |
Key time interval: | Early/Lower Oligocene | ||
Age range of interval: | 33.90000 - 28.40000 m.y. ago |
Stratigraphy
Formation: | Collazo Shale | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Collazo Shale which regionally underlies the Lares Limestone and Ponce chalky beds (Late Oligocene). Correlatable to the Antigua Fm (Antigua) and lower Culebra Fm (canal zone). AGE: Middle Oligocene based on macro- and microfaunal biostratigraphy. Here placed in the Early Oligocene. STRATIGRAPHIC POSITION: From unknown position within formation. |
Lithology and environment
Primary lithology: | green lithified "shale" |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Green shale. LITHIFICATION: Lithified, on the basis of taphonomic data. | |
Environment: | offshore |
Geology comments: ENVIRONMENT: Offshore siliciclastic setting. |
Taphonomy
Modes of preservation: | body,cast,mold/impression |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | surface (in situ),field collection | ||
Reason for describing collection: | taxonomic analysis | ||
Collectors: | Reeds | Collection dates: | 1915 |
Collection method comments: COLLECTOR: C. Reeds (AMNH), 1915. REPOSITORY: Not stated, but is likely to be AMNH, New York. | |||
Taxonomic list comments:COVERAGE: Exhaustive for gastropoda and bivalvia. NOMENCLATURE: An authoritative publication but with quite antiquated nomenclature. Nevertheless, all taxa are identified to species and subgenus resolution. |
Metadata
Database number: | 80193 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy | Research group: | marine invertebrate |
Created: | 2008-04-08 19:53:52 | Last modified: | 2013-11-25 13:37:23 |
Access level: | the public | Released: | 2008-04-08 19:53:52 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
26978. | C. J. Maury. 1920. Tertiary Mollusca from Porto Rico. Scientific Survey of Porto Rico and the Virgin Islands 3(1):1-78 [A. Hendy/A. Hendy/A. Hendy] |