2 Fossils (Lab) Flashcards
All known fossil primates lived in the
Cenozoic era
Cenozoic era is divided into the
Paleogene and Neogene periods
Primates probably originated sometime near the end of the
Mesozoic era
first definite primates in the fossil record appear at the beginning of the
Eocene epoch ~ 56 MYA
earliest records of anthropoid primates come from (2 place and times)
Asia in the Middle Eocene and North Africa in the Late Eocene
Apes underwent a large
adaptive radiation in the Early Miocene (~23-17 MA) of Afro-Arabia
OMOMYOIDS (2)
Rooneyia and Necrolemur
Rooneyia (4)
Late Eocene
complete postorbital bars
frugivorous
diurnal
Necrolemur (4)
Late Eocene
frugivorous
leaping ability
nocturnal
ADAPOIDS (2)
Adapis and Smilodectes
Adapis (4)
Late Eocene
folivorous (Well-developed molar shearing
crests and a body size above Kay’s Threshold)
diurnal
slow-moving, non-leaping arboreal quadrupedalism
Smilodectes (3)
Middle Eocene
folivory
quadrupedal leaping
ANTHROPOIDS: CATARRHINES (3)
Catopithecus
Aegyptopithecus
Mesopithecus
Catopithecus (4)
Late Eocene
arboreal quadrupedal habits
fused metopic suture of the frontal bone complete postorbital closure
Aegyptopithecus (4)
sexually dimorphic
frugivorous + leaves
complete postorbital closure.
arboreal quadruped