Gatunek typowy
Acontiodus rectus Lindström, 1955 .

Opis

Diagnosis. - The base of the M elements gapes obliquely to the plane of the wid e sharp-edged cusp. Other elements bear three sharp ribs along the inner margin and a variable number of furrows
on their sides. Cusps with white matter.
Remarks. - The genus differs from Drepanodus in its strongly asymmetric M elements, and generally more regular appearance of robust elements that are not as strongly differentiated morphologically in the apparatus. From Cornuodus and Semiacontiodus it differs in the externally parabolic, subtriangular cross section of the cusp.

Synonimy

Zasięg czasowy

Literatura

Dzik, J. 1994. Conodonts of the Mójcza Limestone. In: J. Dzik, E. Olempska, & A. Pisera. Ordovician carbonate platform of the Holy Cross Mountains. Palaeontologia Polonica 53, 43-128.

Mellgren, J.S. & Eriksson, M.E. 2006. A model of reconstruction for the oral apparatus of the Ordovician conodont genus Protopanderodus Lindström, 1971.Earth and Environmental Science Transactions of the Royal Society of Edinburgh 97, , 97–112.