Diagnoza

M element with subequal length of short processes, outer process undenticulated and sharplz pointed, inner one with a few denticles; outer process of S_3-4 elements with enlarged proximal denticle.

Porównanie

Along with the type species, also the types of Ozarkodina homoarcuata and Neoprioniodus postinversus  belong to the same apparatus. The early population of the species from Łagów  differs from that of the late Famennian only in more highly arched processes of the M element, in this respect resembling probably ancestral Francodina and its successor, S. lagoviensis. Enlarged denticle in S₃ element indicates some degree of advancement so S. lagoviensis probably did not originate in place from this population but only shared with it common ancestry. That this element type represents only a single location in S. monodentata is suggested by the occurrence of similar elements lacking denticulation on the outer process and with denticles of the inner process almost uniform in size. They are thus transitional morphologically between S and M element types. Inner process in M elements is short and oriented almost perpendicular to the cusp in late populations.

Autekologia

Występowanie geograficzne

Kowala and Łagów.

Zasięg czasowy

Probably the C. quadrantinodosa Zone;  widespread from the P. trachytera Zone to the end of Famennian.

Materiały muzealne

ZPAL: 480 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.