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11 Cards in this Set
- Front
- Back
Cenezoic Era
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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 |
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Mesozoic Era
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225 - 65 mya
Important Events - Dinosours dominant - Large Amphibians |
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Paleozoic
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570 - 225 mya
Important Events - Dominant fishes -first vertabrates, jawless fish |
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Pre Cambrian
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Important Events
- Multicellular invertabrates |
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Oligocene
(Early Primates) |
Aegypoipethecus Lusus
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Miocene
(Early Primates) |
-Proconsuls Africants
-Dryopithecus (Africa 32 - 14 mya) - Sivipithecus (Europe 16 - 11 mya) -Gigantopithecus (Asia 16 - 7 mya) - |
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Homo Erectus
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Brain Size - 750 - 1250 CC
Brain Case Shape - Pentagonal Brain Case -Low forehead - Sagittal Keel -Nuchal Torus - Receeding Chin - Large Molars - Superorbital Torus |
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Homo Sapiens Sapiens
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-Shovel Shaped Incisors
-Shoveling first appears in Homo Erectus |
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Arboreal Theory
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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 |
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Visual Predation Theory
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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
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Stasis
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no morphotical change in an organism for a long peropd of time
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