Page:The Eurypterida of New York Volume 1.pdf/97

 One or two stragglers, notably, return in the Rondout waterlime in greatly diminished number, and a new peculiar type of Eurypterus  appears in waterlime intercalations of the Manlius limestone above.

The North American Devonic has furnished but scanty remains of Pterygotus in the Dalhousie formation of New Brunswick, the Gaspé