Cope, Edward D. "On the discovery of the remains of a gigantic dinosaur in the Cretaceous of New Jersey," in: Proceedings of the Academy of Natural Sciences of Philadelphia, vol. 18 (1866), pp. 275-9.

Cope, Edward D. "Synopsis of the extinct batrachia, reptilia and aves of North America," in: Transactions of the American Philosophical Society, vol. 14 (1871), pp. 1-152. These works are part of the Library Collections, but they are NOT on exhibit.

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