Complexodus sp. A from the Mójcza Limestone.

Diagnoza

Porównanie

Unlike C. pugionifer, which precedes this species stratigraphically in the Mójcza section, the external lobe of the posterior process developes a sinuosity not before a late stages in histogeny. The general appearance of the sp elements is thus similar rather to C. originalis although
adult elements are rather robust. It is unclear whether the reappearance of such primitive morphologies is a result of an evolutionary reversal or a second immigration of C. originalis to the Mójcza area from a region of its permanent occurrence and evolutionary stasis. A slight shift in frequency distribution of the diagnostic character  suggests rather the reversal.

Autekologia

Występowanie geograficzne

Mójcza 

Zasięg czasowy

Occurs in Mójcza from 1.0 to 1.7 m above the bentonite. The range of the species
is separated from that of C. pugionifer by a gap.

Materiały muzealne

Literatura

Dzik, J. 1994a 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.