The new Genus Walliserognathus is described to host the species posthamata (Walliser). The genus is monospecific. The shape of P1 and P2 elements of Walliserognathus posthamatus, characterized by a small platform along the whole elements, and its stratigraphic distribution limited to the A. ploeckensis Zone suggest that the species may have been the bridge in the phylogenesis from Wurmiella to Polygnathoides.
The new genus Walliserognathus and the origin of Polygnathoides siluricus (Conodonta, Silurian)
Corradini C.
Primo
;Corriga M. G.Ultimo
2018-01-01
Abstract
The new Genus Walliserognathus is described to host the species posthamata (Walliser). The genus is monospecific. The shape of P1 and P2 elements of Walliserognathus posthamatus, characterized by a small platform along the whole elements, and its stratigraphic distribution limited to the A. ploeckensis Zone suggest that the species may have been the bridge in the phylogenesis from Wurmiella to Polygnathoides.
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