Section B in Hacienda El Americano, Sierra de los Organos, western Cuba - VIII: Tithonian, Cuba

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Calpionellida
Calpionella spp.
Cephalopoda - Ammonitida - Protancyloceratidae
Protancyloceras catalinense Imlay 1942
Protancyloceras hondense Imlay 1942
see common names

Geography
Country:Cuba
Coordinates: 22.7° North, 83.6° West (view map)
Paleocoordinates:5.0° North, 52.0° West
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period:Jurassic Epoch:Late/Upper Jurassic
Stage:Tithonian 10 m.y. bin:Jurassic 6
Key time interval:Tithonian
Age range of interval:149.20000 - 145.00000 m.y. ago
Stratigraphy
Formation:Guasasa Member:El Americano
Stratigraphic resolution:group of beds
Stratigraphy comments: May belong already to the Berriasian.
Lithology and environment
Primary lithology:black lithified "limestone"
Lithology description: 1 m. Dark, almost black, medium-bedded laminated limestone.
Environment:marine indet.
Geology comments: The Lower Tithonian strata of the Sierra de los Organos were laid down in a shallow, poorly ventilated sea. At the end of the Early Tithonian, the conditions of sedimentation changed slightly, mainly due to moderate deepening of the basin. In the Late Tithonian the basin was apparently shallower and the energy of the environment increased. During the Early Cretaceous the environment was one of deeper waters.
Taphonomy
Size of fossils:macrofossils,microfossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:57724
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate,micropaleontology
Created:2005-12-20 05:26:41 Last modified:2005-12-28 05:54:48
Access level:the public Released:2005-12-20 05:26:41
Creative Commons license:CC BY
Reference information

Primary reference:
15500. R. Myczynski. 1989. Ammonite biostratigraphy of the Tithonian of Western Cuba. Annales Societatis Geologorum Poloniae 59:43-125 [M. Aberhan/S. Nurnberg]