. Bulletins of American paleontology. . Text-figure 1.— Schematic plate diagrams for Twin Cities carabocrinids. A — Typical species of Carabocrinus. B — Holotype of Strophocrinus dicydicus Sardeson, redrawn from Sardeson, 1925, pi. V, fig. 1. Symbols: radials — black, basals — stippled, infrabasals — blank, anal X — X, extra anal X — X', infraradianals — iRA, superradianals — sRA, extra superradianal — sRA'. writers found no difficulty in accepting Strophocrinus as a valid genus (, Bather, 1900, p. 172; Springer, 1913, p. 217; Moore and Laudon, 1943, p. 690; Ubaghs, 1953, p. 750). Sardeson
. Bulletins of American paleontology. . Text-figure 1.— Schematic plate diagrams for Twin Cities carabocrinids. A — Typical species of Carabocrinus. B — Holotype of Strophocrinus dicydicus Sardeson, redrawn from Sardeson, 1925, pi. V, fig. 1. Symbols: radials — black, basals — stippled, infrabasals — blank, anal X — X, extra anal X — X', infraradianals — iRA, superradianals — sRA, extra superradianal — sRA'. writers found no difficulty in accepting Strophocrinus as a valid genus (, Bather, 1900, p. 172; Springer, 1913, p. 217; Moore and Laudon, 1943, p. 690; Ubaghs, 1953, p. 750). Sardeson (1925, 1939) continued to maintain S. dicydicus either as the type species of Strophocrinus or as a species of Carabocrinus. Sardeson's (1925) discussion of the problem of differing numbers of anal plates between species was partly stimulated by the comments of Bassler (1915,. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Paleontological Research Institution (Ithaca, N. Y. ); Columbia University. Ithaca, N. Y. , Paleontological Research Institution [etc. ]
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