The Appendages, Anatomy, and Relationships of Trilobites

by Percy E. Raymond

1878.—Elements of comparative anatomy. Eng. ed. (Bell and Lankester). London.

Goldfuss, A.

1828.—Observation sur le place qu'occupent les trilobites dans le règne animal. Ann. Sci. Nat., Zoologie, vol. 15, p. 83, pl. 2, figs. 5, 7, 9, 10.

Green, J.

1839 A.—The inferior surface of the trilobite discovered. The Friend, Philadelphia, March 16.

1839 B.—The inferior surface of the trilobite discovered. Illustrated, with colored models. Philadelphia.

1839 C.—Remarks on the trilobites. Amer. Jour. Sci. (1), vol. 37, p. 25 et seq.

1840.—An additional fact, illustrating the inferior surface of Calymene bufo. Ibid., vol. 38, p. 410.

Handlirsch, A.