Valle del Ancón section, Sierra de los Organos, western Cuba - IV: Late/Upper Tithonian, Cuba

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Ammonitida - Oppeliidae
Hildoglochiceras (Salinites) sp. (Cantu-Chapa 1968)
original and current combination Salinites
see common names

Geography
Country:Cuba
Coordinates: 22.7° North, 83.8° West (view map)
Paleocoordinates:5.3° North, 52.2° 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:Late/Upper Tithonian
Age range of interval:146.30000 - 145.00000 m.y. ago
Stratigraphy
Formation:Guasasa Member:El Americano
Stratigraphic resolution:group of beds
Stratigraphy comments: The limestone belongs to the upper part of the El Americano Formation, probably still Upper Tithonian.
Lithology and environment
Primary lithology: lithified grainstone
Lithology description: 4 m. Pseudoolitic, sparitic limestone, locally faintly laminated, with clayey-marly intercalations. The content of pseudoolites locally exceeds 65 percent.
Environment:open shallow subtidal
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.
Taphonomy
Modes of preservation:recrystallized
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:57708
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate
Created:2005-12-20 02:27:08 Last modified:2006-03-23 13:33:32
Access level:the public Released:2005-12-20 02:27:08
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]