ERTH 2401 Lecture Notes - Lecture 6: Water Column, Sauropoda, Geochemistry
2 Oct 2016
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Lecture #6: fossil collection (last lecture before midterm) The process of collecting fossils from the field and being put into a museum (hard work) Valley of the moon: argentina early dinosaurs (ancestors) found here. Finding dinosaurs is a combination of luck and fulfilling a specific criterion for success. Rocks between 228 66 ma could have dinosaur fossils (when the dinosaurs lived: look at geological map and decipher through rock layers rocks have to be within the. Late triassic and cretaceous time periods in order for dinosaur fossils to be found. Rocks must be sedimentary, not igneous or metamorphic remember igneous rocks form b/c of volcanic activity therefore destroying any evidence of dinosaur life. Metamorphic rocks are formed because of pressure, which also would compromise the dinosaur evidence therefore must look at strictly sedimentary. Must have your nose to the ground to be in this particular field; spot unusual things.
