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Unformatted text preview: 1 Cenozoic Evolution and Humans The age of mammals. What changes occurred? Coelomate Phylogeny (Stanley, 1999) Coelemates are organisms with a body cavity to process food. Early Mammal: Jurassic plascolotherium, branch from Therapsids Drawing by Jack Conrad (1998) Purgatorius: Survivor of K-T Crisis Hypothetical restoration of the Early Paleocene Purgatorius, one of the earliest known primate-like mammals. From Coe (1988) on http//:www.paleocene-mammals.de/primates.htm 756 What does Cenozoic Climate do? Cenozoic Evolutionary Patterns Plants: Climate cooled and grasslands developed Mammals: Grazing mammals proliferate with new types of teeth. Legs and feet evolve for running to escape predators. Trace lineages by skeletons and teeth. Indicates that snakes came from lizards and whales from walking ancestor 2 Classifcation oF Humans Kingdom: Animalia Phylum: Chordata Class: Mammalia Order: Primates (sub-order Anthropoidea includes superFamily Hominoidea) ¡amily: Hominidae (related Families include those...
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This note was uploaded on 11/30/2010 for the course GEOL 125Lxg at USC.