STRI Loc. 290683 - W of Paraguachon [middle Jimol Fm]: Burdigalian, Colombia
collected by Hendy 2013
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
- Naticidae
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Neverita (Glossaulax) paraguanensis
(Hodson 1927)
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C category | ||||||
Bivalvia
- Arcida
- Arcidae
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Anadara (Cunearca) guajiraensis
|
R category | ||||||
Bivalvia
- Arcida
- Glycymerididae
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Tucetona democraciana
(Hodson et al. 1927)
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R 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Basis of coordinate: | unpublished field data | ||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: | 62 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 - 15.98000 m.y. ago |
Stratigraphy
Formation: | Jimol | Member: | upper Jimol | ||
Regional section: | Cocinetas | Regional bed: | -90 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 section of Jimol Formation; 20 m above STRI Loc. 290682; from 90 m below the Jimol/Castilletes contact. |
Lithology and environment
Primary lithology: | shelly/skeletal lithified calcareous sandstone |
Includes fossils? | Y |
Lithology description: SPECIFIC LITHOLOGY: Consolidated calcareous sandy matrix; nearly limestone. LITHIFICATION: Lithified, as determined in the field and based on museum-reposited specimens. | |
Environment: | transition zone/lower shoreface |
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,mesofossils |
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),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
Database number: | 156723 | ||
Authorizer: | A. Hendy | Enterer: | A. Hendy |
Modifier: | A. Hendy | Research group: | marine invertebrate |
Created: | 2014-05-29 22:12:29 | Last modified: | 2014-09-06 17:47:19 |
Access level: | authorizer only | Released: | 2016-05-29 22:12:29 |
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] |