ANTH 1001 Lecture Notes - Lecture 3: Dental Anatomy, Tethys Ocean, Dentition
Document Summary
Eocene (55-34 million years ago): these were the first primates. a. This similarity in the anatomy is explained by the intercontinental connection/continuity of. Europe and north america by greenland: environment: tropical/subtropical forest in north america and europe, taxonomy and phylogeny, 2 broad groups of species: adapids and omomyids, adapids: likely ancestral to lemurs and lorises, omomyids: likely ancestral to tarsiers e. Inferences: some species were nocturnal; others were diurnal, some species were insectivores, others were frugivores-folivores. This is based on estimates of body mass. iii. some species were arboreal quadrupeds and leapers: some species show sexual dimorphism and canine size; inference these species were polygynous, no species has/shows a toothcomb (i. e. , dental comb) This is the same dental formula as new world monkeys. Therefore, parapithecines may be ancestral to new world. This inference is based on the colonization of south america by monkeys rafting across the atlantic ocean: proliopithecines (proplipithecus and aegyptopithecus) have dental formula of 2,1,2,3/2,1,2,3.
