Back Rio Grande (locality 3) : Campanian, Jamaica

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia - Hippuritida - Antillocaprinidae
Titanosarcolites sp. Trechmann 1924
3 specimens
3 specimens
Bivalvia - Hippuritida - Hippuritidae
Barrettia sp. Woodward 1862
3 specimens
see common names

Geography
Country:Jamaica State/province:Portland
Coordinates: 18.1° North, 76.5° West (view map)
Paleocoordinates:
Basis of coordinate:estimated from map
Time
Period: Cretaceous Epoch: Late Cretaceous
Stage: Campanian 10 m.y. bin: Cretaceous 7
Key time interval: Campanian
Age range of interval: 83.6 - 72.2 m.y. ago
Stratigraphy
Formation:Back Rio Grande Member:Upper limestone
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology: lithified "limestone"
Secondary lithology: lithified "volcaniclastic"
Lithology description: This member comprises at least 9 m of cemented limestones with common stylolites, and is exposed on the banks and within the river at localities 3 and 4 (Fig. 1). Rudists are common in some beds and include C. cubensis and D. krijneni sp. nov. (Fig. 6). At locality 4 (Fig. 1), the stylolite-bearing limestones contain Barrettia sp. A and Titanosarcolites sp. A in the same bed (Fig. 6).
Environment:reef, buildup or bioherm
Taphonomy
Modes of preservation:body,shellbed
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection,observed (not collected)
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:116618
Authorizer:M. Aberhan Enterer:D. Wellmanns
Modifier:D. Wellmanns Research group:marine invertebrate
Created:2011-09-09 22:46:27 Last modified:2025-02-22 15:12:02
Access level:authorizer only Released:2016-09-09 22:46:27
Creative Commons license:CC0
Reference information

Primary reference:
37560. S. F. Mitchell and R. Ramsook. 2009. Rudist bivalve assemblages from the Back Rio Grande Formation (Creaceous: Campanian) of Jamaica and their stratigraphic significance. Cretaceous Research 30:307-321 [M. Aberhan/D. Wellmanns]