01440cam a2200325I 4500 5386279 20071019112355.0 751023s1963 ilua b 000 0 eng 63022043 (OCoLC)ocm01729215 DLC YSM OCLCQ UIU n-us-il QE1 .F4 v. 12, no. 6 UIUU Kjellesvig-Waering, Erik N. Pennsylvanian invertebrates of the Mazon Creek area, Illinois : Eurypterida / Erik N. Kjellesvig-Waering -- [Chicago] : Chicago Natural History Museum Press , 1963. p. 85-106 : ill. ; 24 cm. Fieldiana. Geology ; v. 12, no. 6 Chicago Natural History Museum. Publication 973 "September 17, 1963." Includes bibliographical references (p. 104-106). Fieldiana series has been published as Geological Series by Field Columbian Museum (1895-1909) and Field Museum of Natural History (1909-1943), and as Fieldiana: Geology by Chicago Natural History Museum (1945-1966) and Field Museum of Natural History (1966-). Eurypterida. Paleontology Pennsylvanian. Paleontology Illinois. Chicago Natural History Museum. Field Museum of Natural History. Fieldiana. Geology ; v. 12, no. 6. Publication (Chicago Natural History Museum) ; 973. C0 UIU