Walliserodus nakholmensis (Hamar, 1966)
Sugerowana cytacja: Moczyński 2017. Walliserodus nakholmensis (Hamar, 1966) . Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/view/Species/Walliserodus+nakholmensis)
Diagnoza Symmetrical elements (S0) 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 (M, S3-4) are morphologically transitional between those of W. costatus and W. ethingtoni in that they have wide ned but not alate bases. 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. Occurs also in the Late Ordovician of Międzygórz and Zalesie. Zasięg czasowy 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. Materiały muzealne 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. |
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