The Eurypterida of New York/Volume 2/Explanations of plates/Plate 81
PLATE 81
Pterygotus (Erettopterus) grandis (Pohlmann)
Page 370
| 1 | Pygidium (holotype). Type of Ceratiocaris grandis Pohlman Horizon and locality. Bertie waterlime. Buffalo, N. Y. |
The original is in the museum of the Buffalo Society of Natural Sciences
| Memoir 14. N.Y.State Museum. | Plate 81. |
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| G.S.Barkentin del. | J.B.Lyon Co. State Printer. |