Folivora (sloths) | |||||||
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Collection | Species | Collection No. | Sex | Vertebral formula | Presacral No. | Rud. ribs on vertebrae | Skeletal and fibrous abnormalities |
 |  | 15260 **) | F | 5C 1C/T 22T 1T/L 3L 6S 1S/Cg 5Cg | 32 | V6, V29 | C2/C3 fusion, deformation of pelvic girdle, hole in scapula |
RBINC | Choloepus hoffmanni | 16349 **) | F | 5C 1C/T 21T 1T/L 3L 1L/S 5S 5Cg | 31.5 | V6 | C1/C2 fusion, hole in larynx |
 |  | 16348 **) | F | 5C 1C/T 21T 4L 1L/S 7S 1SCg 4Cg | 31.5 | V6 | C2/C3 fusion |
 |  | RMNH.MAM.322 **) | F | 6C 1C/T 23T 4L 7S 1S/Cg 5Cg | 34 | V7 | Malformed first ribs, hole in scapula |
 |  | RMNH.MAM.3961 | F | 6C 1C/T 23T 1T/L 2L 1L/S 7S 5Cg | 33.5 | V7 | - |
 |  | RMNH.MAM.24470 | n.a. | 5C 2C/T 24T 4L 7S 1S/Cg 3+Cg | 35 | V6,V7 | Abnormal fibrous band attached to rudimentary rib |
 |  | RMNH.MAM.24469 | n.a. | 5C 2C/T 23T 4L 7S 4Cg | 34 | V6 V7 | Incomplete ossification sternum |
 |  | RMNH.MAM.3274 | n.a. | 6C 1C/T 22T 1T/L 4L 7S 6Cg | 34 | V7 | - |
 |  | RMNH.MAM.3465 | n.a. | 5C 2C/T 23T 1T/L 3L 7S 5Cg | 34 | V6 V7 | C2-C3 fusion, ossification absent in sternum, fusion of ribs on V6-V7, |
 |  | RMNH.MAM.1002 **) | F | 5C 2C/T 23T 3L 1L/S 7S 4Cg | 33.5 | V6 V7 | C2-C3 fusion, deformation of first ribs, asymmetric sternum, fusion of rudimentary ribs on V6-V7 |
NCBN | Choloepus didactylus | RMNH.MAM.7203 **) | F | 6C 1C/T 23T 4L 7S 1S/Cg +Cg | 34 | V7 | C2-C3 fusion, V7-V8 fusion, asymmetric vertebrae, fibrous band attached to rudimentary ribs |
 |  | RMNH.MAM.2552 | F | 6C 1C/T 24T 3L 7S 1S/Cg 5Cg | 34 | V7 | Malformed ribs (3 most anterior ones) |
 |  | RMNH.MAM.1673 | F | 6C 1C/T 24T 3L 8S 5Cg | 34 | V7 | C3,C4,C5 fused |
 |  | ZMA335 | n.a. | 6C 1C/T 24T 3L 8S 4CG | 34 | V7 | Ossification absent in sternum and sacrum |
 |  | ZMA334 | n.a. | 5C 2C/T 23T 4L 1L/S 9S 3+Cg | 34.5 | V6 | C2-C3 fusion |
 |  | ZMA.336 | n.a. | 6C 1C/T 1C/T 22T 4L 8S 4Cg | 34 | V7 V8 | Abnormal fibrous band attached to rudimentary rib, incomplete ossification |
 |  | RMNH.MAM.11417 | F | - | - | - | Malformed humeri, oligodontia |
 |  | RMNH.MAM.1156 | n.a. | 1L 1L/S 7S 4Cg | - | - | *) |
 |  | ZMA.9765 | F | 6S 1S/Cg | - | - | *) |
 |  | RMNH.MAM.21576 | n.a. | 8C 1C/T 15T 3L 1L/S 6S 9Cg | 28 | V9 | Asymmetric cranium |
 |  | RMNH.MAM.21581 | n.a. | 7C 2C/T 14T 1T/L 3L 7S 8Cg | 27 | V8 V9 V24 | - |
 |  | RMNH.MAM.24440 | n.a. | 8C 1C/T 16T | - | - | Asymmetric cranium |
 |  | RMNH.MAM.10460 | F | 8C 1C/T 15T 4L 6S 8Cg | 28 | V9 | Irregularly shaped first rib |
 |  | RMNH.MAM.10459 | F | 8C 1C/T 14T 3L 1L/S 6S 6C 6+Cg | 27 | V9 | Metacarpal, metatarsal anomalies, many fractures, hole in cranium (unknown cause) |
 | Bradypus tridactylus | RMNH.MAM.18781 | F | 8C 1C/T 14T 4L 6S 8Cg | 27 | V9 | - |
 |  | RMNH.MAM.24421 | n.a. | 8C 1C/T 15T 4L 5S 10Cg | 28 | - | - |
 |  | ZMA331 | n.a. | 7C 2C/T 14T 1T/L 4L 6S 1S/Cg 7Cg | 28 | V8 V9 V24 | Irregularly shaped vertebrae and first rib |
 |  | ZMA332 | n.a. | 8C 1C/T 15T 1T/L 3L 6S 1S/Cg 6+Cg | 28 | V9 V25 | - |
 |  | ZMA924 **) | n.a. | 8C 1C/T 15T 3L 6S 7Cg | 27 | V9 | Irregularly shaped vertebrae and first rib |
 |  | U. ZMA coll. **) | n.a. | 8C 1C/T 15T 4L 5S 1S/Cg 8Cg | 28 | V9 | - |