I. Introduction
A. History: Dinosaur extinction 64-66 million years ago
B. K-T extinction theory proposed in 1980s
1. Definition
2. Fields of study involved
C. Mass Extinction
1. Definition
2. _________________________: The largest extinction
D. Casualties and survivors
1. Species that went extinct
a.__________________: The most seriously attacked group
b. Dinosauria
c. Petrosauria
2. Seemingly unaffected species
a.
b. Non-dinosaurian reptiles
3. The increased species:
Thesis: Several complications that make work hard for the scientists/detectives trying to crack this case.
II. ________________________: Not enough discovery
A. Varied factors that influenced the formation of fossils
B. Lack of knowledge about the whereabouts of the fossil
III. The nature of extinction: Causation or cessation
A. Causation: ________________
B. __________________: Gradual environmental change
IV. Time resolution
A. aaaaaaaaaaaaaaaaaa: Material no more than 50,000 years old
B. Other methods
1. Lack of accuracy
2. Difficulty in matching events
V. Reconstruction: The dependence of Paleoecology on fossil record and time resolution
VI. aaaaaaaaaaaaaaaaaaa: Hypothetical extinction earlier than actual extinction?
VII. aaaaaaaaaaaaaaaaaaaa: Hypotheses that cannot be scientifically proven or disproved