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Best Paleozoic

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Best 1 Archeoscorpius

Archeoscorpius is an extinct genus of scorpion known from fossil records, notable for its place in the evolutionary history of Paleozoic arachnids.

2 Middlesboro

The Middlesboro impact crater in Kentucky, United States, is notable because the city of Middlesboro was constructed entirely inside its 3-mile-wide astrobleme.

3 Decaturville

Decaturville is an eroded meteorite impact crater in Missouri, United States, notable for its distinct central uplift and a structural diameter of approximately six kilometers.

4 Crooked Creek

Crooked Creek is a highly eroded meteorite impact crater located in Missouri, United States, notable for its complex structural deformation and roughly 7-kilometer diameter.

5 Glasford
Glasford

The Glasford impact crater in Illinois, United States, is an ancient buried structure notable for its Ordovician age and exceptional exposure of deep crustal breccias.

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