. Bulletins of American paleontology. 360 Bulletin 229 1959. Pandrrodus pandni (Stauffer) Ethington and Furnish, Jour. Paleont., vol. 33, p. 5+1, pi. 73, fig. 9. ?1960. Pandcrodus pandrri (Stauffer), Ethington and Furnish, Jour. Paleont., vol. 34, pp. 267, 272 (not figured). ?1966. Piutdcrodus striatits (Stauffer), Schopf, New York State Mus., Bull. 405, p. 66, pi. 5, figs. 22, 24. 1966. Pandcrodus pandrri (Stauffer), Webers, Minnesota Geol. Sur., Spec. Pub. SP-4, p. 39, pi. 2, figs. 1, 2, 3, 6. This rare species, of which we have only 44 Lexington-Kope representatives, is based on specimens f
. Bulletins of American paleontology. 360 Bulletin 229 1959. Pandrrodus pandni (Stauffer) Ethington and Furnish, Jour. Paleont., vol. 33, p. 5+1, pi. 73, fig. 9. ?1960. Pandcrodus pandrri (Stauffer), Ethington and Furnish, Jour. Paleont., vol. 34, pp. 267, 272 (not figured). ?1966. Piutdcrodus striatits (Stauffer), Schopf, New York State Mus., Bull. 405, p. 66, pi. 5, figs. 22, 24. 1966. Pandcrodus pandrri (Stauffer), Webers, Minnesota Geol. Sur., Spec. Pub. SP-4, p. 39, pi. 2, figs. 1, 2, 3, 6. This rare species, of which we have only 44 Lexington-Kope representatives, is based on specimens from a mixture of Ordovician and Devonian conodonts derived from a residual clay of probable Cretaceous age in Minnesota (Stauffer, 1940). The species was fully diagnosed by Stauffer and has subsequently been carefully reconsidered by Glenister (1957) and Webers (1966). Our speci- mens are similar to those described by these authors, hence there is no need to describe them here. Like other Panderodus species, P. panderi is somewhat variable in development and arrangement of costae. Sharp recurvature of the cusp^ a posterior costa on each face, and the distinctive architecture of the base are all characters that plainly distinguish P. panderi from the other species of the genus. We have examined the holotype of this species (Text-figure 11) and find it asymmetric, with an antero-lateral costa that extends the full length of the cusp. The same feature distinguishes the paratype figured by Stauffer (1940, pi. 3, fig. 9). Our specimens, like Glenister's Maquoketa one, lack an. Text-fig. 11. Holotype of Pandrrodus panderi (Stauffer), X75. Lateral views and cross-sections; dotted line outlines basal 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. ); Colum
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