Rio Hatillo Formation, region of Pueblo Viejo, Cordillera: Early Albian, Dominican Republic

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Echinoidea - Holasteroida - Holasteridae
Holaster sp. Agassiz 1836
Czaplewski et al. 2005 1 specimen
possibly two specimens instead
Echinoidea - Holectypoida - Holectypidae
? Holectypus sp.
Czaplewski et al. 2005 1 specimen
possibly two specimens instead
Echinoidea - Salenioida - Hyposaleniidae
Hyposalenia sp. Desor 1858
1 specimen
possibly two specimens instead
Rhynchonellata - Terebratulida - Kingenidae
Kingena sp. Davidson 1852
1 specimen
Bivalvia - Cardiida - Arcticidae
Venilicardia sp. Stoliczka 1870
count unclear
Bivalvia - Ostreida - Ostreidae
Ostrea cf. ameghinoi Ihering 1907
2 specimens
O. cf. ameghinoi rocana
Gastropoda - Cerithiidae
Cerithium cf. heeri
1 specimen
Cephalopoda - Belemnitida - Belemnopseidae
Neohibolites cf. minimus (Miller 1826)
13 specimens
Cephalopoda - Phylloceratida - Phylloceratidae
Phylloceras (Hypophylloceras) cf. seresitense (Pervinquière 1907)
6 specimens
Cephalopoda - Ammonitida - Tetragonitidae
Tetragonites cf. nautiloides (Pictet 1848)
6 specimens
Tetragonites cf. rectangularis Wiedmann 1962
2 specimens
Kossmatella (Kossmatella) romana Wiedmann 1962
5 specimens
Cephalopoda - Ammonitida - Protetragonitidae
Protetragonites aelosus
1 specimen
P. aelosus aelosus
Cephalopoda - Ammonitida - Beudanticeratidae
Beudanticeras cf. laevigatum
2 specimens
Cephalopoda - Ammonitida - Douvilleiceratidae
Douvilleiceras cf. mammillatum (Schlotheim 1813)
2 specimens
see common names

Geography
Country:Dominican Republic
Coordinates: 19.2° North, 70.7° West (view map)
Paleocoordinates:
Basis of coordinate:estimated from map
Geographic resolution:outcrop
Time
Period: Cretaceous Epoch: Early Cretaceous
Stage: Albian 10 m.y. bin: Cretaceous 4
Key time interval: Early Albian Ammonoid zone:  Douvilleiceras mammillatum
Age range of interval: 113 - 109.9 m.y. ago
Stratigraphy
Formation:Rio Hatillo
Stratigraphic resolution:group of beds
Stratigraphy comments: lower part of the Río Hatillo Fomation; Mammillatum Zone; Late Lower Albian age
Lithology and environment
Primary lithology: lithified "siliciclastic"
Lithology description: The Río Hatillo Formation includes a basal conglomerate, sandstones and calcareous sandstones covered by massive biogenic limestone. The fauna assemblage described herein was collected from the clastic rocks within the lower part of Río Hatillo Formation by N. Russell.
Environment:shoreface
Geology comments: The Río Hatillo Formation was deposited in a shallow, near-shore environment as part of the Cretaceous Volcanic Arc sections.
Taphonomy
Modes of preservation:body,mold/impression
Size of fossils:macrofossils
Preservation of anatomical detail:poor
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Collection method comments: The invertebrates herein described were collected by N. Russell, identified by the senior author and are housed in the paleontologic collection of the National Museum of Natural History in Havana, Cuba (MNHNCu).
Taxonomic list comments:The fauna is composed by: ammonites (~54.5%), belemnites (~27.3%), gastropods (~2.3%), bivalves (~4.5%), brachiopods (~2.3%) and echinoderms (~9.1%).
Metadata
Database number:65128
Authorizer:M. Aberhan, J. Alroy Enterer:S. Nurnberg, J. Alroy
Modifier:A. Hendy Research group:marine invertebrate
Created:2006-09-19 04:11:57 Last modified:2025-02-22 15:12:02
Access level:the public Released:2006-09-19 04:11:57
Creative Commons license:CC0
Reference information

Primary reference:

18737. 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 [M. Aberhan/S. Nurnberg]

Secondary references:

18256 N. J. Czaplewski, A. D. Rincón, and G. S. Morgan. 2005. Fossil bat (Mammalia: Chiroptera) remains from Inciarte tar pit, Sierra de Perijá, Venezuela. Caribbean Journal of Science 41(4):768-781 [C. Bell/C. Bell]