pikabu monster
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Jaekelopterus
21-October-2015 Wednesday
Jaekelopterus is the largest known arthropod
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Arthropoda
Arthropoda, Jaekelopterus
Eurypterida
Eurypterida, Jaekelopterus
Jaekelopterus
Merostomata
Jaekelopterus, Merostomata
Pterygotidae
Jaekelopterus, Pterygotidae
Crustoscorpion
Jaekelopterus, Ракоскорпион
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