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Eurypterid chelicera: claw of Pterygotus anglicus Agassiz

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Colour image of brown rock with mottled horizontal band of darker brown rock and sketch of scorpion
Eurypterid chelicera: claw of Pterygotus anglicus Agassiz. Devonian. Atholville, New Brunswick. Collector: J. McGovern and R.F. Miller, 1995. New Brunswick Museum (NBMG 10000). Image width 14 cm. Eurypterids are often called sea scorpions since they superficially resemble modern scorpions. Pterygotid eurypterids are ‘giant’ sea scorpions reaching 2.5 to 3 metres in length. In New Brunswick fossils indicate eurypterids were at least 1.7 metres long.