Fossils Flashcards
Study (8 cards)
1
Q
Geological time began with what era?
A
Precambrian era.
2
Q
How long ago did scientists believe earth form?
A
4.6 billion years ago.
3
Q
What are the 3 different eras?
A
Paleozoic, Mesozoic, Cenozoic.
4
Q
Which era had dinosaurs?
A
The mesozoic era.
5
Q
Paleozoic era had what creature?
A
Era of fishes.
6
Q
What was the paleozoic era called?
A
Often called the age of fishes.
7
Q
What was the early paleozoic era called?
A
Often called the age of invertebrates.
8
Q
A
