St. Barthélemy island (Pleistocene of French Southern Territories)

Also known as Isla San Bartolomé

Where: Antillas Francesas, French Southern Territories (17.8° N, 62.7° W: paleocoordinates 17.8° N, 62.7° W)

• coordinate stated in text

When: Flamand Member (Saint Bartholomew Formation), Middle Pleistocene (0.8 - 0.1 Ma)

Environment/lithology: fissure fill; lithology not reported

• Sites ‘A’, ‘B’ and ‘C’ are fissures on the islet of Ile Coco, lying 4.5 km southeast of Gustavia, St.Barthélemy (17.873 ºN, 62.812 ºW), and 800 m offt he southern coast of the main island. These fissures are apparently the remains of former vadose cave passages, heavily invested with speleothem calcite, that were subsequently unroofed by erosion (McFarlane et al. 2014).
• The basal deposit in the cave remnants is a very thick, massive laminated flowstone, ‘Unit 1’. This is overlain by the fossiliferous residuum, well displayed at Site A. Elsewhere (e.g., Site B), the fissures and cave remnants are infilled with marine sands and capped by a thin (~ 2 cm) flowstone floor, ‘Unit 2’. The calcite layers, units 1 and 2, were dated by the uranium series disequilbrium method. Site C consists of a former narrow fissure in what was probably an ancient cave floor that is now infilled with calcite (McFarlane et al. 2014).

Size class: macrofossils

Primary reference: D. A. McFarlane, J. Lundberg, and G. Maincent. 2014. New specimens of Amblyrhiza inundata (Rodentia:Caviomorpha) from the Middle Pleistocene of Saint Barthélemy, French West Indies. Caribbean Journal of Earth Science (47)15-19 [J. Carrillo/K. Pino]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 235213: authorized by Juan Carrillo, entered by Kateryn Pino on 10.06.2024

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Rodentia - Heptaxodontidae
Amblyrhiza inundata Cope 1868 caviomorph
MNHN.F.ANC.1, MNHN.F.ANC.2