Eldredge, Niles 1943-
Systematics and evolution of Phacops Rana (Green, 1832) and Phacops Iowensis Delo, 1935 (Trilobita) from the middle Devonian of North America / Niles Eldredge. -- New York : [s.n.], 1972 - p. 47-113 il. -- (Bulletin of the American Museum of Natural History ; 147,2).
Crustáceos marinos fósiles
595.3
Systematics and evolution of Phacops Rana (Green, 1832) and Phacops Iowensis Delo, 1935 (Trilobita) from the middle Devonian of North America / Niles Eldredge. -- New York : [s.n.], 1972 - p. 47-113 il. -- (Bulletin of the American Museum of Natural History ; 147,2).
Crustáceos marinos fósiles
595.3