Pseudopolygnathus ultimus
Sugerowana cytacja: Dzik, J. 2015. Pseudopolygnathus ultimus (Bischoff, 1957) . Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/viewrev/Species/Pseudopolygnathus+ultimus+)
 Diagnoza The lateral rows of denticles in the dorsal part of the icrion of P1 elements transformed into wide transverse ridges separated in the middle by a longitudinal escarpment, sometimes forming also a low crest. Porównanie Left and right elements differ in width of icrion and prominence of its ribbing. The species seems to be a direct successor of P. ziegleri but the transition was probably long-lasting and population variability wide. It is thus hardly of much correlative value in stratigraphy. Autekologia Występowanie geograficzne Kowala and Dzikowiec. Zasięg czasowy Latest P. jugosus and D. trigonica Zones. Materiały muzealne ZPAL: 1,333 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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