Primate Fossil Evidence - VII. Ancestor of Hominoids a....

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Primate Fossil Evidence 21:09 I. Two hypothesis a. 50 mya mammals love on land and climb on trees II. Last common ancestor of living primates =  a. Rat-like a.i.  Prosimian and Anthropoids  III. Purgatorius is a place found in Montana IV. EARLY PRIMATES IMPORTANTFEATURES a. long tail b. limbs with claws, not nails c.  eyes at side of head d. long snout   e. rodent-like jaws  f. dental formula :3  I , 1  C , 4  PM , 3  M V. Ancestor of Posimians a. Notharctus b. 55 mya c. Pro-premative type of primate: a primate that characteristics of smell VI. Ancestor of Anthropoid Monkey a. Aegytopithecus- found in Egypt a.i. 30 mya a.ii. Ancestor of old and new world monkey a.iii. 36 teeth b. Catopithecus= ancestor of old world monkey b.i. Found in Egypt b.ii. Eyes on front
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b.iii. 2 pre-molar teeth c. Cebapithecus= ancestor of new world monkey c.i. Closer to us c.ii. Found in La Yenta Columbia
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Unformatted text preview: VII. Ancestor of Hominoids a. Proconsul africanus a.i. Molars are divided into 5 cusps a.ii. ^thats how you know a fossil can be an apes a.iii. ^More surface area on teeth made easier to process foods a.iv. ^Included sees bark and hard to process roods a.v. ^We depend on a variety of foods, omnivores a.vi. ^Molars reflect the type of diet a.vii. ^trace evidence that we become omnivores= proconsuls molars VIII. Ancestor of Orangutang a. Sivapithecus a.i. Found in Turkey & Pakistan a.ii. Occipital area IX. Dental Formula a. Ancestor of Primates = 44 Teeth b. Prosimian= 36 teeth c. Anthropoid: New world = 36 teeth d. Anthropoid: Old World = 32 e. ^Old world moneys were more developed than the new world because they had more teeth * 21:09 21:09...
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This note was uploaded on 10/05/2011 for the course ANTHRBIO 364 taught by Professor Frisancho during the Winter '10 term at University of Michigan.

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Primate Fossil Evidence - VII. Ancestor of Hominoids a....

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