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17 Cards in this Set
- Front
- Back
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Continental drift
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The movement of continents
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Pangaea
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The old, single landmass that encompassed all of the world's continents
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Laurasia
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The northern half of Pangaea that included North America and Eurasia, minus India
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Gondwanaland
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Southern half of Pangaea that included India, Australia, South America, etc.
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Mineralized
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When organic material in bones is replaced by minerals. Allows for creation of fossils.
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Radiometric methods
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Methods used to date fossils using chemistry
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Radioactive decay
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Constant, clock-like rate at which particular isotopes change from one form into another
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Stratum
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Geological layer
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Apatite crystals
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An inorganic component of tooth enamel measured in electron-spin resonance dating
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Gymnosperms
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Trees like contemporary redwood, pine, and fir
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Angiosperms
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Flowering plants
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Plesiadapiforms
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A group of fossil animals found in what is now Montana, Colorado, New Mexico, and Wyoming
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Tapetum
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A reflecting layer behind the retina that increases the light-capturing capacity of the eye
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Postcranial bones
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The bones that make up the skeleton below the neck
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Hominoids
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ASK JAY FOR A GOOD DEFINITION
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Proconsulids
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See pg. 265
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Zygomatic arches
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Cheekbones
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