Test 2 Flashcards
Types of fossils
Preserved body parts Casts or molds Imprints Amber Petrifaction
Fossils
Evidence that organisms lives in the past
Is there fossil dung?
Yes
Formation of fossils requires
Rapid burial of organisms
Rapid deposition of sediments
Lithiation
Sediment changed into rock
Fossil record predictions (evolution)
- Gradual sequence from simple to complex organisms
- Transitional forms should be abundant
- Livin species significantly different from fossil ancestors
- Modern species should not be found in rocks older than rocks containing supposed ancestors
Fossil record predictions (creation)
- Sudden appearance of complex organisms with onto few transitional forms
- Organisms remain essentially the same to present of become extinct
- Fossilized modern species could be found in rock containing extinct species
- Different combos of fossil species on different strata indicate ecological zones not evolutionary history
Until what century was it coin belief that sedimentary rocks and fossils were all deposited in Noah’s flood?
Mid to late 1700s
Catastrophism
Rapid violent major events could radically shape the planet very quickly
Uniformitarianism
The present is the key to the past
Unbiblical view were challenges by whom?
Scriptural geologists
Who believed that a series of catastrophic events were supposedly responsible for geologic formations ?
Cavier and others
What can be used to describe past events?
Processes observes today
Who proposed and popularized uniformitarianism?
James Hutton. Charles Lyell
Uniformists
View the world as old an with no beginning of end