Polygnathus (glaber) glaber Ulrich & Bassler, 1926

1926 Polygnathus glaber n. sp. - Ulrich & Bassler, pag. 46, Plate 7, fig. 13.

Original diagnosis - A lanceolate species doubtless allied to P. peracutus Bryant from the Genundewa limestone (Devonian) of New York, but differing conspicuously from it in its smooth instead of coarsely tuberculated surface.

Occurrence - Hardin sandstone, U. S. A. (Ulrich & Bassler, 1926).

Age range - Lower Mississippian (Ulrich & Bassler, 1926).

Holotype - Cat. No. 11004, 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.