Where: Jamaica (17.9° N, 76.3° W: paleocoordinates 17.9° N, 76.0° W)
• coordinate estimated from map
• small collection-level geographic resolution
When: Bowden Formation (Coastal Group), Late/Upper Pliocene (3.6 - 2.6 Ma)
• STRATIGRAPHIC RELATIONS: From Pickerill et al. (1998). Bowden Formation is the uppermost stratigraphic unit of the Lower Coastal Group. The top of the formation is defined by the nonconformably overlying, early Pleistocene Old Pera Beds of the Upper Coastal Group. AGE: Late Pliocene. The unit was formely regarded as Miocene in age, even Oligocene, but foraminiferal and planktic gastropod biostratigraphy points to a late Pliocene age. THICKNESS: The formation has an extimated maximum thickness of 150m, although the basal part of the formation is unexposed. STRATIGRAPHIC POSITION: Unknown position within formation. COMMENTS: In its type area of the Bowden district, natural exposures of the formation are poor and discontinuous, so that a complete and detailed stratigraphy of the entire sequence cannot be determined.
• bed-level stratigraphic resolution
Environment/lithology: offshore; unlithified, pebbly, conglomeratic marl
Size class: macrofossils
Preservation: original aragonite, original calcite
Reposited in the FMNH
Collection methods: bulk, sieve,
• COLLECTOR: R. Portell (1990). REPOSITORY: FLMNH. FIDELITY: High ecological fidelity. ASSOCIATED COLLECTIONS: Small (<4mm) split of XJ-002.
Primary reference: A. J. W. Hendy, D. P. Buick, K. V. Bulinski, C. A. Ferguson, and A. I. Miller. 2008. Unpublished census data from Atlantic coastal plain and circum-Caribbean Neogene assemblages and taxonomic opinions. [A. Hendy/A. Hendy/A. Hendy]more details
Purpose of describing collection: paleoecologic analysis
PaleoDB collection 69091: authorized by Austin Hendy, entered by Austin Hendy on 17.02.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Anachis aulata snail | |
Diacria digitata, Diacria trispinosa, Cavolinia tridentata, "Cavolinia vendryesiana" = Cavolinia marginata, Cavolinia ventricosa, Clio pyramidata
Diacria digitata Guppy 1882 snail
Diacria trispinosa de Blainville 1821 snail
Cavolinia tridentata Niebuhr 1775 snail
"Cavolinia vendryesiana" = Cavolinia marginata Bronn 1962 snail
Cavolinia ventricosa Guppy 1882 snail | |
Bivalvia | |
"Corbula (Corbula) heterogena" = Varicorbula disparilis
"Corbula (Corbula) heterogena" = Varicorbula disparilis d'Orbigny 1853 clam |