Table 4. New AMS radiocarbon dates on sloth bones from Haiti.
AA no. | UF no. | Species | Locality and elevation | Skeletal element | d13C | 14C age (yr BP) | cal BP |
---|---|---|---|---|---|---|---|
58439 | 170123 | Neocnus comes | Trouing Ismays (970 m) | Right humerus, left ulna | –26.83 | 4,391 ± 42 | 5,260–5,180, 5,060–4,840 |
58430 | 170210 | N. comes | Trouing Deron 1 (1,000 m) | Right pelvis | –24.39 | 4,486 ± 39 | 5,300–5,030, 5,020–4,970 |
58435 | 170429 | N. comes | Trouing Attie (1,770 m) | Right and left tibia | –25.32 | 6,161 ± 45 | 7,210–6,900 |
58432 | 170308 | N. comes | Trouing Jeremie 5 (1,275 m) | Left tibia | –23.918 | 6,875 ± 47 | 7,790–7,610 |
58433 | 170311 | N. comes | Trouing Jeremie 5 (1,275 m) | Right tibia | –24.55 | 7,411 ± 51 | 8,350–8,150, 8,140–8,110, 8,090–8,040 |
58431 | 170046 | N. comes | Trouing Jeremie 5 (1,275 m) | Right radius, right ulna | –24.16 | 8,326 ± 57 | 9,490–9,240, 9,220–9,190, 9,180–9,130 |
58434 | 75469 | N. dousman | Trouing Marassa/Trujin Bridge (1,875 m) | Right tibia | –24.268 | 9,897 ± 65 | 11,560–11,170 |
58436 | 169942 | Parocnus serus | Trouing Gallery (40 m) | Right femur | –23.32 | >14,200 | — |
58438 | 170195 | N. comes | Trouing de la Scierie (1,815 m) | Left tibia | –22.40 | 27,720 ± 560 | — |
All specimens are from the Haitian mainland except the single bone of Parocnus serus from Ile de la Tortue, 7.5 km north of the Haitian mainland. AA no. is the sample number for the University of Arizona Acceleration Radiocarbon Laboratory. UF no. is the catalog number in the Vertebrate Paleontology Collection, Florida Museum of Natural History. cal BP dates are reported at 95% confidence. Binomial nomenclature follows refs. 5 and 32.