Check out the most terrifying extinct creatures ever! You'll be very glad to see these scary animals are no longer roaming the earth!

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10: Titanoboa
9: Cameroceras
8: Kaprosuchus
7: Arthropleura
6: Pulmonoscorpius
5: Argentavis Magnificens
4: Deinosuchus
3: Megalania Prisca
2: Entelodon
1: Megalodon