Laboratory on the Biological Classification, Primate Osteology and Osteo-Patterns of Locomotion

Your Name ___________________________
1. Activity pattern (hint: focus on the eye orbits)              Nocturnal           Diurnal
2. This is a cranium of a New World Monkey (hint: focus on dentition)   Yes   No
3. The cranium belongs to a (hint: focus on sagittal and occipital crests)  Male   Female
4. Dental comb           Yes        No
5. Dental formula (Mandibular) ___________________
6. Dental formula (Maxillary)      ___________________
7. Sagittal crest          Yes         No
8. Occipital crest      Yes         No
9. Prehensile Tail is present only in some __________ World Monkeys
10. Relatively long rostrum         Haplorrhines       Strepsirrhines
11. Plates separating eye orbits from the temporal fossa found in                                                                                                                                                                                                                                             Haplorrhines         Strepsirrhines

Please use osteometric board to measure and then calculate the Intemembral Index in order to assign/identify the locomotion pattern of the skeleton you are measuring.
You MUST show your work/calculations.

12.  Intermembral index __________________________ locomotion pattern _________
13.  Intermembral index ___________________________locomotion pattern _________
14.  Intermembral index __________________________ locomotion pattern _________
15. Position of the foramen magnum suggests locomotion pattern _________
16. Based on the tarsal phalanges you are looking at locomotion pattern _________
17. Ape           Yes       No
18. New World Monkey             Yes             No
19. The Intermembral index of Vertical Jumpers should be between 80-100    Yes    No
20. The Intermembral index of Bipeds and Modified Brachiators is between 100-150     Yes    No