Prioniodus curvidens Ulrich & Bassler, 1926

1926 Prioniodus curvidens n. sp. - Ulrich & Bassler, pag. 11-12, Plate 1, fig. 16-17.

Original diagnosis - Main cusp and all the denticles curve slightly toward the front. Main cusp very long, sharp edged and ungulate ('on the side so as to be rhomboidal in cross section. Downward projection short and thin. Bar of moderate thickness nearly straight, the denticles closely approximated without being in contact, long, slender, 10 or 11 in number, hardly half as long as the main cusp.

At first glance this species seems identical with Euprioniodina conferta (see pl. 3, fig. 17) but the complete preparation of the specimens established the entire absence of the denticles on the anterior basal extension in P. curvidens.

Occurrence - Rhinestreet Formation, U. S. A. (Ulrich & Bassler, 1926).

Age range - Upper Devonian (Ulrich & Bassler, 1926).

Cotypes - Cat. No. 11243, U.S.N.M.

References:

- Ulrich, E. O., Bassler, S. (1926) - A classification of the toothlike fossils, conodonts, with descriptions of american Devonian and Mississippian species. Proceedings of the U. S. National Museum, vol. 68: 63p.