Gatunek typowy
Icriodus latericrescens Branson et Mehl, 1938

Opis

Diagnosis. — Fusiform icrion on the ventral process, well denticulated dorsal process with a tendency to develop icrion on it and to reduce completely the rudimentary, undenticulated anterior process.
Remarks. — The earlier described late Famennian icriodontid species with additional denticulated processes, attributed to Antognathus (Sandberg and Ziegler 1979) differ from those of the early Devonian Latericriodus mostly in their irregular shape and denticulation and in bending of the posterior process in the opposite direction (ventral, not dorsal). This may not be enough to substantiate a generic level distinction, as the specimens described below are morphologically and stratigraphically transitional. Unquestionable Latericriodus is unknown above the Givetian varcus Zone but its occurrence is generally disjunct (Bultynck 2003).

Synonimy

Zasięg czasowy

Literatura

Dzik, J. 2006. The Famennian "Golden Age" of conodonts and ammonoids in the Polish part of the Variscan sea. Palaeontologia Polonica 63, 1-359.