Section A in Hacienda El Americano, Sierra de los Organos, western Cuba - II: Early/Lower Tithonian, Cuba

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Protozoa - Calpionellida
Calpionella alpina
Protozoa
Radiolaria indet. Müller 1858
Cephalopoda - Ammonitida - Himalayitidae
Parodontoceras butti
Cephalopoda - Ammonitida - Oppeliidae
? Hildoglochiceras (Salinites) sp. (Cantu-Chapa 1968)
original and current combination Salinites
see common names

Geography
Country:Cuba
Coordinates: 22.7° North, 83.6° West (view map)
Paleocoordinates:5.2° 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:Early/Lower Tithonian
Age range of interval:149.20000 - 146.30000 m.y. ago
Stratigraphy
Formation:Guasasa Member:El Americano
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:gray lithified lime mudstone
Secondary lithology:brown,gray lithified argillaceous "limestone"
Lithology description: 1.5 m. Dark-grey, micritic, medium-bedded limestone, with intercalations of greyish-brown marly limestone and dark-grey marly shale. The limestone layers have wavy bounderies.
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.
Taphonomy
Size of fossils:macrofossils,microfossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:57712
Authorizer:M. Aberhan Enterer:S. Nurnberg
Modifier:S. Nurnberg Research group:marine invertebrate,micropaleontology
Created:2005-12-20 02:51:25 Last modified:2006-03-23 13:32:50
Access level:the public Released:2005-12-20 02:51:25
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]