Río Hatillo Formation
The Río Hatillo Formation is a geologic formation in Dominican Republic. It preserves bivalve, echinoid, gastropod and ammonite fossils dating back to the Early Albian period.
| Rio Hatillo Formation Stratigraphic range: Early Albian | |
|---|---|
| Type | Formation |
| Lithology | |
| Primary | Sandstone |
| Other | Conglomerate, limestone |
| Location | |
| Coordinates | 19.2°N 70.7°W |
| Country |  |
  Río Hatillo Formation (the Dominican Republic) | |
Description
late Early Cretaceous (105 Ma)
Río Hatillo Formation comprises a basal conglomerate, sandstones and calcareous sandstones, covered by a massive biogenic limestone. The formation was probably deposited in a shallow, near-shore environment as part of the Cretaceous Volcanic Arc sections.[1]
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See also
- List of fossiliferous stratigraphic units in the Dominican Republic
References
- Rio Hatillo Formation at Fossilworks.org
Further reading
- R. Myczynski and M. Iturralde Vinent. 2005. The Late Lower Albian Invertebrate Fauna of the Río Hatillo Formation of Pueblo Viejo, Dominican Republic. Caribbean Journal of Science 41(4):782-796
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