Keywords: The Eurypterida of New York figure 70.jpg Restorations of Stylonurus powriensis powriei 1 and Pterygotus anglicus 2 in Page's Introductory Text-book of Geology ed 5 1859 p 71 The Eurypterida of New York Volume 1 New York State Museum Memoir 14 figure 70 http //books google com/books id gd4aAAAAYAAJ Google Books 1912 textbook John Mason Clarke 1857-1925 and Rudolf Ruedemann 1864-1956 <br /> illustrator David Page 1814-1879 PD-old The Eurypterida of New York text figures David Page Stylonurus Pterygotus |