EVANTH 101D Lecture Notes - Lecture 14: Treeshrew, Colugo, List Of Fossil Primates

83 views2 pages

Document Summary

Absolute dating (radiometric methods: uses half-life based on decay constant - the amount of time it takes for half of the amount to decay, radioactive isotopes - unstable isotopes. Derivative methods - rely on a combination of relative and absolute dating: faunal correlation, we can date fossils using biostratigraphy. When we find a new area we don"t know the dates, the presence of the fossil we know can help identify the dates: paleomagnetism, the magnetic pole flips between northern and southern hemisphere over time. Currently in normal epoch: as lava cools down, they orient themselves toward the magnetic pole as. Evolution of early primates evolution with flying squirrels: mesozoic - gymnosperms prominent, mid-late mesozoic - angiosperms prominent. Evolution of primate traits: grasping hands and feet to feed on terminal branches of angiosperms, orbital convergence to be able to judge depth and improve predation on insects.

Get access

Grade+20% off
$8 USD/m$10 USD/m
Billed $96 USD annually
Grade+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
40 Verified Answers
Class+
$8 USD/m
Billed $96 USD annually
Class+
Homework Help
Study Guides
Textbook Solutions
Class Notes
Textbook Notes
Booster Class
30 Verified Answers

Related Documents