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absolute dating method in which the magnetic field runs between poles; polarity changes-irregular intervals; magnetic particles align towards poles; sedimentary rock
paleomagnetic reversals
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subdivision of haplorhines; nwm; have broad, flat noses, outward pointing nostrils, diurnal; dental formula 2.1.3.3.; some have prehensile tails
platyrrhines
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not true primates; lived during Paleocine epoch
plesiadapis
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present in strepsirhines; not closure
post orbital bar
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chronometric dating methid in which K turns to Ar gas; works with samples more than 100,000 yrs old; volcanic rock best; cannot date fossil directly, dates the rock surrounding the fossil
Potassiam-argon dating
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tails that can grasp objects like hands can
prehensile
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African form of the owm and apes during the Miocene epoch
proconsul
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walking on all fours
quadrapedialism
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lots of young; little parent investment; males strive for this
r-selection
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a difference in a physical atrribute between the males and females of a species
sexual dimorphism
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depth perception
stereoscopic vision
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relative dating method in which the deeper you go in the layers, the older things get; law of superposition; deceased organisms incorporated into layer
stratigraphy
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subdivision of primates; lemurs and lorises; nocturnal; arboreal; rely more on smell; claws, post orbital bar; denntal comb; grooming claws
strepsirhines
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the study of the deposition of plant or animal remains and the environmental conditions affecting their preservation
taphonomy
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haplorhine; southeast asian island; eyes larger than the brain; monogamous (male and femal mate for life)
tarsiers
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nocturnal
tapetum lucidum
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lives on the ground
terrestrial
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type of locomation in which the primate jumps from tree tunk to tree trunk; longer legs than arms
vertical clinging and leaping
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female advirtisement of her reproductivity
visual estrus
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