Walcott, C.D., 1884. New Species of Fosslls from the Trenton Group of New York. New York State Museum Annual Report 35, 207-214.

Walcott, C.D., 1879. Discovery of the Remains of the Natatory and Branchial Appendages of Trilobites. New York State Museum Annual Report 28, 89-92.

Walcott, C.D., 1879. Eggs of the Trilobite. New York State Museum Annual Report 31, 66-67.

Walcott, C.D., 1879. New Species of Fossils from the Calcif'erous Formation. New York State Museum Annual Report 32, 129-131.

Walcott, C.D., 1879. New Species of Fossils from the Chazy and Trenton Limestones. New York State Museum Annual Report 31, 68-71.

Walcott, C.D., 1879. Some Sections of Trilobites from the Trenton Limestone. New York State Museum Annual Report 31, 61-65.