Sweetospathodus n.gen. and Triassospathodus n.gen., Two Important Lower Triassic Conodont Genera

摘要

Two new Lower Triassic conodont genera, Sweetospathodus n.gen. and Triassospathodus KOZUR n.gen., are described. Sweetospathodus is a transitional form between the platform-bearing gondolellid Clarkina and the platformless Neospathodus. Triassospathodus was formerly included into Neospathodus, but is clearly distinguished by the outline of the lower side (lower side of the basal cavity not upward curved as in all Neospathodus species).