Paltodus? semisymmetricus (Hamar, 1966) from the Mójcza Limestone.

Diagnoza

Porównanie

The apparatus composition was proposed by DZIK (1976) but the species remains only superficially known. Except that the apparatus is composed of an oistodontiform element with long cusp and that elements of the symmetry transistion series with two sharp ridges at their sides
have characteristically internally expanding bases, little can be said about it. The morphology of elements of the species is closely similar to that of Besselodus arcticus ALDRIDGE, 1982 and it is a matter of dispute whether this is an effect of a secondary development of geniculation of the ne elements in the Dapsilodus lineage or a development of peculiar oblique striation in elements of them symmetry transition series of Paltodus, making them identical with respective elements of Dapsilodus.
I am rather inclined to the first interpretation .

Autekologia

Występowanie geograficzne

Mójcza

Zasięg czasowy

Rare in the Mójcza Limestone from 0.4 above up to 1.4 m above the discontinuity
(E. robustus - E. lindstroemi Subzones) and in coeval strata of the Baltic region .

Materiały muzealne

Literatura

Dzik, J. 1994a 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.