Diagnoza

The ke elements with the anterior process short but sharply pointed.

Synonims:

Prioniodus prevariabilis n. sp.; FAHRAEUS, 1966; Prioniodus prevariabilis FAHRAEUS; BERGSTROM; 1971;
Prioniodus alatus HADDING; BEDNARCZYK,1971; Prioniodus prevariabilis FAHRAEUS; BEDNARCZYK, 1971;  Paracordylodus lindstroemi BERGSTROM; BEDNARCZYK, 1971; Prioniodus navis LINDSTROM; BEDNARCZYK, 1971; Prioniodus alatus alatus HADDlNG; OZIK. 1976;  Prioniodus (Baltoniodus ) prevariabilis prevariabilis FAHRAEUS; LOFGREN, 1978.

Porównanie

The type population of the species is Late Kundan in age but originally also Aserian populations were included , with the diagnostic pointing of the anterior process in the ke elements less apparent. RASMUSSEN (1991 ) proposed to restrict the range of B. medius to the Kundan but his identification of the species in the Early Kundan is based on misidentification of ke elements in his samples . The illustrated specimen (RASMUSSSEN 1991: Fig. 5G) is actually a hi element of B. parvidentatus.

Autekologia

Występowanie geograficzne

Zasięg czasowy

Being widespread in the Late Kundan and Aserian of the Baltic region this species
occurs in the Mójcza Limestone only as rare reworked large specimens in the layer immediately above the discontinuity surface.

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.