EARTH 7 Lecture Notes - Lecture 2: Roy Chapman Andrews, Robert T. Bakker, Bone Wars
Document Summary
Note taker: deanna coughlin (714)235-7896; deannajasmine@yahoo. com lecture 2: Cope (1840-1897: began as friends, later attacked one another in publications, great feud; stealing and bribery ii. a. Bone wars results in around 140 new species of known dinosaurs. Roy chapman andrews finds first dinosaur egg. History of humans is not equivalent to history of life- buffon, popularized by. Many species have gone extinct; overwhelming evidence provided by cuvier in 1796. Common descent with modification and natural selection/ evolution- Ostrom- dinosaurs with feathers; close to birds. Igneous rocks form directly from a melt; magma underground, lava above ground; the melted crust freezes/ cools down into a solid- igneous rock; ex: granite or basalt. These rocks often help to determine absolute ages, rarely preserve fossils. Trace fossil= evidence of an organism"s activity. <25,000 years= subfossil fossils form where sediments accumulate and eventually turn into sedimentary rocks. Sediments erode in high places, filling lakes and rivers.
