00830cam a22002651 4500 gs 65000190 DLC 20260227111416.0 780629s1964 dcuabf b f000 0 eng gs 65000190 (OCoLC)4016905 DLC OClU ISS OCoLC DLC premarc QE75 .P9 no. 460 I 19.16:460 Gordon, Mackenzie, 1913- Carboniferous cephalopods of Arkansas. Washington, U.S. Govt. Print. Off., 1964. 322 p. illus., maps (2 fold. in pocket) 30 plates. 29 cm. Geological Survey (U.S.). Professional paper, 460 Bibliography: p. 290-303. Cephalopoda, Fossil Paleontology Arkansas Paleontology Carboniferous. 30013 30013