Where: Cayman Islands (19.8° N, 79.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Late/Upper Pleistocene (0.1 - 0.0 Ma)

• Recently we dated three samples of land snails from Patton's Fissure, using the single-species methodology of radiocarbon age determination on land snails developed for Jamaican species. Our samples of Caymanian snails (Hemitrochus caymanensis) should provide a fairly accurate estimate of the age of Patton's Fissure, for H. caymanensis is an arboreal snail that does not feed on the ground. Therefore, this species should incorporate little if any "dead carbon" into its shell through ingestion of limestone. The age determinations are (in years BP, with lab number): 11,180 ± 105 (Layer 5,SI-6518); 13,230 ± 135 (Layer 7, SI-65 19); and 13,850 ± 135 (Layer 9, SI-6520).

• bed-level stratigraphic resolution

Environment/lithology: fissure fill; carbonate

Size class: macrofossils

Reposited in the FMNH

Primary reference: D. W. Steadman and O. M. Takano. 2016. A new extinct species of Snipe (Aves: Scolopacidae: Gallinago) from the West Indies. Zootaxa 4109:345-358 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 209851: authorized by Matthew Clapham, entered by Matthew Clapham on 16.05.2020, edited by Mark Uhen

Creative Commons license: CC0 (CC0)