Section C in Hacienda El Americano, Sierra de los Organos, western Cuba - I (Jurassic of Cuba)

Where: Cuba (22.7° N, 83.6° W: paleocoordinates 5.0° N, 52.0° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: El Americano Member (Guasasa Formation), Tithonian (152.1 - 145.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified, gray limestone and lithified shale

• 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.
• 2 m. Dark-grey medium-bedded limestone with shale intercalations.

Size class: macrofossils

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

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 57726: authorized by Martin Aberhan, entered by Sabine Nürnberg on 20.12.2005

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Gastropoda
  -
Gastropoda indet.
Gastropoda indet. Cuvier 1795 snail
Cephalopoda
 Ammonitida - Protancyloceratidae
Protancyloceras sp.
Protancyloceras sp. Spath 1924 ammonoid
 Ammonitida - Oppeliidae
Neochetoceras sp.
Bivalvia
  -
Bivalvia indet.
Bivalvia indet. Linnaeus 1758 clam
Brachiopoda
  -
Brachiopoda indet.
Brachiopoda indet. Cuvier 1805