by Glenn
(Colorado springs )
Fossil Turtle Shell?
Looks like a Tuttle shell, But I do not no
Comments for Tuttle???
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Geologic Time Geologic Time Line
Cenozoic Era
Quaternary
Neogene
Paleogene
Mesozoic Era
Cretaceous
Jurassic
Triassic
Paleozoic Era
Permian
Carboniferous
Devonian
Silurian
Ordovician
Cambrian
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