Descriptions of some vertebrate remains from the Fort Union beds of Montana Author Cope, E. D. text Proceedings of the Academy of Natural Sciences of Philadelphia 1876 28 248 261 journal article 25997 10.5281/zenodo.3371111 87e60a32-5002-431d-b24e-2b0dd43b67fb 3371111 Ceratodus hieroglyphus , sp nov. This species is materially different from the last, and was more abundant,judging from the occurrence of its remains . The dentigerous plate is thin and dense, and has the appearance of a short toothed comb witlh a handle. The tooth-like points are the extremities of low ridges, which are arranged nearly at right angles to a wide longitudinal elevated half of the osseous base. They are separated by shallow grooves from each other, and are not continuous with the basis just mentioned,which rises abrtuptly above them. They are smooth. The " handle " above alluded to is triangular in section having two bevels on the side stupportlng the tooth ridges. The lower face of the bone is smooth.

Measurements.	M.
Total length	.013
Length of dentigerous portion	.010
Total width	.0045
Width of dentigerous portion	.0020

There are thirteen teeth in the length .