Walliserodus nakholmensis
Sugerowana cytacja: Moczyński 2017. Walliserodus nakholmensis (Hamar, 1966) Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/viewrev/Species/Walliserodus+nakholmensis)
 Walliserodus nakholmensis (Hamar, 1966) of the Mójcza Limestone. Diagnoza Symmetrical elements (tr) of the apparatus with flat external side and with only five keels. Porównanie Costate elements of W. nakholmensis differ from those of related species by having fewer longitudinal keels. The elements of the anteriormost two pairs (ne-hi) are morphologically transitional between those of W. costatus and W. ethingtoni in that they have wide ned but not alate bases . NOWLAN (1981) was the first who properly recognized the apparatus of the species (and genus) and included in his reconstruction the smooth element types shared also by species of Scalpellodus . Autekologia Występowanie geograficzne The species is widely distributed in North Atlantic faunas of the Middle Ordovician as well as in the Late Ordovician Hamarodus fauna. In Mójcza it cooccurs with W. ethingtoni in the middle of the section, beginning from the discontinuity surface, and continuing in its occurrence to the top of the section. Occurs also in the Late Ordovician of Międzygórz and Zalesie. Zasięg czasowy 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. |
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