Part S, Echinodermata 1, vol. 1 & 2 , Ch. 3, p. 268 - 455 Authors Robert V. Kesling Museum of Paleontology University of Michigan Harold H. Beaver Esso Research Production Company R. C. Moore University of Kansas Robert O. Fay Oklahoma Geological Survey Johannes Wanner University of Bonn Donald B. Macurda Jr. Museum of Paleontology University of Michigan DOI: https://doi.org/10.17161/dt.v0i0.5636 Downloads PDF Published 1968-01-01 Issue Part S, Echinodermata 1, vol. 1 & 2 (1968) Section Chapters License https://creativecommons.org/licenses/by/4.0/