Final Review (stuff after midterm) Flashcards
What are some possible factors that cause the Cambrian Explosion?
- Earth was warming
- Rising sea levels
- Rising oxygen
- Increased calcium concentrations in the ocean
- Rise of predators?
What were the first animals with eyes?
Trilobites
What are the six periods of the Paleozoic?
Cambrian, Ordovician, Silurian, Carboniferous, Permian
What event occurred at the beginning of the Paleozoic?
The Cambrian Explosion
What event occurred at the end of the Paleozoic?
The Permian-Triassic Extinction
What is the Great Unconformity?
The major hiatus observed worldwide between the Pre-Cambrian and Paleozoic rocks
What sedimentary rock formed during the Cambrian?
Burgess shale
When did the development of skeletons occur?
During the Cambrian Explosion
What are the three periods of the Mesozoic?
Triassic, Jurassic, Cretaceous
What was the biggest event of the Mesozoic?
Pangea broke up
When did the South Atlantic Ocean open?
During the Cretaceous
What is the difference between angiosperms and gymnosperms?
Angiosperms have encased seeds, gymnosperms have exposed seeds
What is the biggest difference between the Saurischian Dinosaur and the Orthnischian Dinosaur?
Saurischian has a lizard hip and the ornithischian has a bird hip
Which type of dinosaur traveled in groups?
Ornithischian Dinosaurs
Which dinosaurs were primarily quadrupeds?
Sauropods
