Textbook Notes (362,934)
Canada (158,107)
Anthropology (116)
ANTH 1210 (69)
Chapter 4

ANTH 1210 Chapter 4: Topic 48

3 Pages
Unlock Document

University of Manitoba
ANTH 1210
Haskel J.Greenfield

OS82 First major mammal radiation First possible primitive primates plesiadapoids Earliest evidence for primate evolution (North America) Begins with preprimate and ends with earliest appearance of prosimians 55 MYA Preprimate form long snout, emphasis on incisors, orbits facing sides, orbits open to rear, smaller olfactory area, closely related to the earliest primates Eocene 5335 MYA warm tropical climate widespread modern orders of mammals appear prosimian primates common and widespread lemur forms, tarsiiformes first true prosimians notharctus, necrolemur nocturnal, tarsier like, large orbits, less specialized teeth, claws disappear, nose reduced, orbits are face forward (rely on vision more), partially isolated from chewing muscles by postorbital ridge, flatter face, emphasis on molars smilodectes powerful limbs, long hind limbs, long grasping digits with nails (not going to ask) prosimians flourish at beginning of Eocene anthropoidea first appear at end Oligocene 3523 MYA cooler and drier climate in north, primates go extinct in North America South American monkeys colonization of New World, Island hoppingdrifting (continents) didnt evolve in South America Egypt Fayum = Old delta of ancient Nile, great fossil deposits Example of anthropoids Aegyptopithecus
More Less

Related notes for ANTH 1210

Log In


Don't have an account?

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.