Ossianodus nebraskensis

Ginter, 2016


Classification: Elasmobranchii Hybodontiformes Hybodontidae

Reference of the original description
Ginter, M. (2016)
The heterodonty in euselachian sharks from the Pennsylvanian of Nebraska. Acta Geologica Polonica, 66(3), 299–312

Types
Ossianodus nebraskensis
Holotype: CM(fossil): 44547b;


Description:


Citation: Ossianodus nebraskensis Ginter, 2016: In: Database of fossil elasmobranch teeth www.shark-references.com, World Wide Web electronic publication, Version 09/2026

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Material
Material of the first description [24491]: 29 teeth

Description
Original diagnosis after Ginter, 2016 [24491]: Hybodont shark with a heterodont dentition; tooth-base forming a shallow, gently arched plate, extending beyond the crown base on all sides; both orolingual and orolabial regions of the base perforated with a horizontal row of pores; crown moderately to strongly asymmetrical, composed of six to nine cusps, which may be thin and high, to lower and broad, to very low and pyramidal; all the cusps cristated almost up to their tips on the labial and lingual faces.

References
Ginter, M. (2016)
The heterodonty in euselachian sharks from the Pennsylvanian of Nebraska. Acta Geologica Polonica, 66(3), 299–312
DOI: 10.1515/agp-2016-0015