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8 Cards in this Set
- Front
- Back
Swartpuntia |
Ediacaran |
|
Dickinsonia |
Ediacaran |
|
Tribrachidium |
Ediacaran |
|
Cyanobacterial stromatolite |
Archean to present Especially common in Proterozoic |
|
Acritarch |
Middle Proterozoic |
|
Prokaryote microfossil |
Early Proterozoic (2 Ga) |
|
Bryozoan: mound, stick or screw shaped |
Ordovician to present |
|
Brachiopod |
Cambrian to present Especially common in Paleozoic |