neoproterozoic era Flashcards
1
Q
when was the neoproterozoic era?
A
1 billion to 542 mya
2
Q
when were the first macroscopic fossils of animals established?
A
560 mya
3
Q
what were early soft bodied eukaryotes known as?
A
ediacaran biota
4
Q
what animals did the ediacaran biota consist of?
A
molluscs, sponges, cnidarians
5
Q
what types of bodies did the organisms have?
A
many had external shells with radial, simple bodies
6
Q
what did this era provide evidence for?
A
early animal embryos and predadation
