STRI Loc. 290684 - W of Paraguachon [upper Jimol Fm]: Burdigalian, Colombia
collected by Hendy 2013
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Potamididae
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Potamides suprasulcatus
(Gabb 1873)
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C category | ||||||
Gastropoda
- Neogastropoda
- Turbinellidae
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Turbinella falconensis
(Hodson 1931)
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R category | ||||||
Bivalvia
- Ostreida
- Ostreidae
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Crassostrea sp.
Sacco 1897
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A category | ||||||
see common names |
Geography
Country: | Colombia | State/province: | La Guajira |
Coordinates: | 11.9° North, 71.4° West (view map) | ||
Paleocoordinates: | 11.2° North, 68.1° West | ||
Basis of coordinate: | unpublished field data | ||
Altitude: | 54 meters | ||
Geographic resolution: | small collection |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
Key time interval: | Burdigalian | ||
Age range of interval: | 20.44000 - 15.97000 m.y. ago |
Stratigraphy
Formation: | Jimol | Member: | upper Jimol | ||
Regional section: | Cocinetas | Regional bed: | -73 m | ||
Regional order: | bottom to top | ||||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: STRATIGRAPHIC RELATIONS: From the Jimol Formation, which conformably overlies the Uipta Formation (early Miocene) and is conformably overlain by the Castilletes Formation. This area and nearby collections have been previously mapped as Castilletes Formaton (late Pliocene-early Pleistocene). AGE: Burdigalian, on the basis of macrofaunal composition; direct age established by extrapolation of Sr-isotope dating by enterer. STRATIGRAPHIC POSITION: From upper part of Jimol Formation; 25 m above STRI Loc. 290683; thin oyster-Potamides rich coquina; from 73 m below the Jimol/Castilletes contact. |
Lithology and environment
Primary lithology: | shelly/skeletal poorly lithified siltstone |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Poorly consolidated silty matrix. LITHIFICATION: Poorly lithified, as determined in the field and based on museum-reposited specimens. | |
Environment: | lagoonal |
Geology comments: ENVIRONMENT: Shallow sub tidal siliciclastic setting, normal salinity; 5-30 m. |
Taphonomy
Modes of preservation: | body,original calcite,replaced with calcite |
Degree of concentration: | concentrated |
Size of fossils: | macrofossils |
Spatial orientation: | random |
Preservation of anatomical detail: | poor |
Abundance in sediment: | abundant |
Size sorting: | poor |
Fragmentation: | occasional |
Bioerosion: | none |
Encrustation: | none |
Temporal resolution: | time-averaged |
Spatial resolution: | parautochthonous |
Collection methods and comments
Collection methods: | surface (float),surface (in situ),field collection,observed (not collected) | ||
Reason for describing collection: | paleoecologic analysis | ||
Collectors: | Hendy | Collection dates: | 2013 |
Collection method comments: COLLECTOR: A. Hendy, 01/26/2013. REPOSITORY: Observed (not collected). | |||
Taxonomic list comments:COVERAGE: Comprises characteristic molluscs. NOMENCLATURE: Not an authoritative publication, but with modern nomenclature, and species-resolution identifications. |
Metadata
Also known as: | STRI Sample 37853 | ||
Database number: | 156724 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2014-05-29 22:25:27 | Last modified: | 2014-09-06 17:46:48 |
Access level: | authorizer only | Released: | 2016-05-29 22:25:27 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
43760. | A. J. W. Hendy, D. S. Jones, F. Moreno, V. Zapata, and C. Jaramillo. 2015. Neogene molluscs, shallow marine paleoenvironments, and chronostratigraphy of the Guajira Peninsula, Colombia. Swiss Journal of Palaeontology 134(1):45-75 [A. Hendy/A. Hendy/A. Hendy] |