Conditolepis tenuipunctata Sannemann, 1955
Sugerowana cytacja: Dzik 2015. Conditolepis tenuipunctata Sannemann 1955. Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/view/Species/Conditolepis+tenuipunctata+)
Diagnoza P1 elements elongate and sinuous, with wide smooth platform bearing rounded triangular extension in the middle. Porównanie The species may be related to stratigraphically older C. lobicornis, from which it differs in the reduced lobe of the platform. At Wietrznia in sample Wtr-27 an early population of this species occurs with P2 elements virtually lacking the platform, similar to those of C. falcata, that is without a recognizable cusp. Such an element was already attributed to the species by den Boogaard and Kuhry (1979). Younger samples with P1 elements typical for the species contain P2 elements with very wide, oval platform, closely similar to that in more advanced Conditolepis species. I suggest to distinguish early and late forms of the species on this basis. A robust appearance of P1 elements characterizes populations with the platform of P2 elements already well developed but not reaching the tip of the inner process (sample Md-27). Autekologia Występowanie geograficzne Jabłonna, Wietrznia, Kowala, and Miedzianka. Zasięg czasowy K. crepida Zone. Materiały muzealne ZPAL: 3,535 specimens. 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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