ANT203Y1 Midterm: ANT203 test 3 notes.pdf
Document Summary
Relative dating stratigraphy biostratigraphy (faunal correlation) flourine analysis. Primate origins refers to sister orders of tree shrews, flying lemurs, and primates during the late mesozoic, the superorder euarchonta diverged from mammals based on molecular and morphological evidence, primates originated (diverged from the. Lca) sometime between 90 - 65 mya most primate evolution unfolded in the cenozoic era, split into seven epochs: Eocene euprimates post-cranial anatomy indicates arboreal adaptations recently discovered skeleton had nails, not claws also altiatlasus, which is not conclusively classified (euprimate?) forward-facing eyes greater encephalization postorbital bar nails, not claws opposable big toe. 55. 8 mya five distinctive traits, which suggest adaptation to a warmer, lush climate of broad-leaved evergreen forests: Lemur-like adapoids most primitive euprimates (dental formula 2:1:4:3) Notharctids (north america and two species from europe) Adapids mandibles/teeth seem derived, but just convergent evolution. 1st n-h fossil named, described by cuvier in the 19th century slow, arboreal quadruped with incipient dental comb diurnal, folivorous.
