Friday Know Your Primate

Order Primates
Infraorder Strepsirrhini
Family Adapidae
Genus Adapis
Species Adapis parisiensis
The Adapidae are fossil primates that range from the early Eocene to the late Miocene in Europe and North America. They were most numerous during the middle Eocene. There are two subfamilies (Northarctinae and Adapinae) comprised of 19 genera (five in Northarctinae, the rest in Adapinae). Perhaps the best know of the Adapinae is Adapis parisiensis – a medium sized primate from the late Eocene in France.

A. parisiensis has a low broad skull, a small braincase and large sagittal and nuchal crests. The orbits are small and the muzzle is short. Limb bones suggest that A. parisiensis was a slow aboreal quadruped – similar to the slow loris. They have fused mandibles, a free ectotympanic ring (similar to the lemurs in the picture below):
Interestingly enough there seems to be a difference of opinion between Fleagle and Conroy on some of the anatomy. For example Conroy says the canines are sexually dimorphic, Fleagle says they are not. Conroy says the snout is elongated, Fleagle says moderately short. Teach the controversy!

2 Responses

  1. On canine sexual dimorphy:
    Were the gentlemen talking about the same species? I do believe that sexual dimorphism can vary between species in the same genus.

  2. Yup, they were both talking about A. parisiensis

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