Raymondiceras umbilicatum (Sobolew, 1914)
Sugerowana cytacja: Dzik, J. 2015. Raymondiceras umbilicatum (Sobolew, 1914) . Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/view/Species/Raymondiceras+umbilicatum+)
 Raymondiceras umbilicatum (Sobolew, 1914) from the mid C. marginifera Zone at Kowala in the Holy Cross Mountains. Diagnoza Extremely simplified suture and open umbilicus. Porównanie The figures provided to Oma-re-protomeroceras umbilicatum are not especially informative. However, the wide, V-shaped ventral lobe seems to identify this species rather convincingly. Moreover, most of the material represented in Sieklucki’s brickpit seems to come from strata of the same age as the horizon with pyritized ammonoids at Kowala. The specimen is actually indistinguishable from corresponding ontogenetic stages of Prolobites delphinus but cannot be attributed there because of its significantly older geological age. This species are placed with reservation in Afrolobites. Autekologia Występowanie geograficzne Kowala. Zasięg czasowy Mid C. marginifera Zone. Materiały muzealne ZPAL: 1 specimen. 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. |
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