Hemilistrona margaritata Schäfer, 1976
Sugerowana cytacja: Dzik 2015. Hemilistrona margaritata Schäfer 1976. Ikonoteka (http://ikonoteka.paleo.pan.pl/xwiki/bin/view/Species/Hemilistrona+margaritata+)
Diagnoza Porównanie Longitudinal rows of tubercles on the platform of lanceolate P1 elements are typical for the species. The morphology of this kind may be a part of population variability of H. homoirregularis. However, there seems to be a change in morphology of longitudinally ornamented P1 elements of Hemilistrona. In geologically younger samples the tubercles are less prominent and the platform more regularly lanceolate, giving the P1 elements aspects somewhat similar to Dasbergina kayseri. Autekologia Występowanie geograficzne Ostrówka. Zasięg czasowy L. styriacus Zone. Materiały muzealne ZPAL: 14 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. |
|