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Impact Craters
21 geological period values
Browse by Geological Period
Filter all impact craters entries by geological period.
pleistocene
8
eocene
7
cretaceous
6
ordovician
5
middle ordovician
4
pliocene
4
devonian
4
late cretaceous
4
holocene
4
early cretaceous
4
paleocene
3
triassic
3
late ordovician
3
carboniferous
2
paleogene
2
lower cretaceous
2
not specified in text
2
permian
2
miocene
2
mississippian
2
jurassic
2
