01035cam a22002531 4500 gs 42000012 DLC 20260227111347.0 760612s1941 xx 000 0 eng gs 42000012 (OCoLC)2224346 DLC TxEU DLC QE817.O8 C6 Cooper, Chalmer L. (Chalmer Lewis), 1898- Chester ostracodes of Illinois, by Chalmer L. Cooper. printed by authority of the state of Illinois. Urbana, Ill., 1941. 101 [1] p. incl. 14 pl., tables. 25 cm. Illinois State Geological Survey Report of investigations, no. 77 At head of title: State of Illinois, Dwight H. Green, governor. Dept. of registration and education, Frank G. Thompson, director. Division of the State geological survey, M. M. Leighton, chief, Urbana... "References": p. 65-66. Ostracoda, Fossil. Paleontology Carboniferous. Paleontology Illinois. 27760 27760