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11 Cards in this Set

  • Front
  • Back
Cenezoic Era
65 MYA to present

Important Events:
- Modern Genera of Animals
- Early humans and giant mammals now extinct
- anthropoid radiationn and culmination of mammalian speciation
-earliest apes
Mesozoic Era
225 - 65 mya

Important Events
- Dinosours dominant
- Large Amphibians
Paleozoic
570 - 225 mya

Important Events
- Dominant fishes
-first vertabrates, jawless fish
Pre Cambrian
Important Events
- Multicellular invertabrates
Oligocene
(Early Primates)
Aegypoipethecus Lusus
Miocene
(Early Primates)
-Proconsuls Africants
-Dryopithecus (Africa 32 - 14 mya)
- Sivipithecus (Europe 16 - 11 mya)
-Gigantopithecus (Asia 16 - 7 mya)
-
Homo Erectus
Brain Size - 750 - 1250 CC
Brain Case Shape
- Pentagonal Brain Case
-Low forehead
- Sagittal Keel
-Nuchal Torus
- Receeding Chin
- Large Molars
- Superorbital Torus
Homo Sapiens Sapiens
-Shovel Shaped Incisors
-Shoveling first appears in Homo Erectus
Arboreal Theory
the characteristics found om most primates are adaptions that allow primates o pursue an arboreal lifestyle and to compete with other arboreal animals.

characteristics can include:
- increased reliance on vision w/ binocular vision
-reduction in the importance of sense of smell
- prehensile hands and feet
-nails instead of claws
Visual Predation Theory
Prehensie extremities with precision grip, reduced claw, and binocular vision evolved in the 1sr primares to enable them to prey on insects on the terminal branches of the lower layers or tropical rain forest
Stasis
no morphotical change in an organism for a long peropd of time