Description
Original diagnosis after Underwood & Schlögl, 2013 [18090]: Extreme dignathic heterodonty and weak mono− gnathic heterodonty. Lower teeth rectangular in profile, at least twice as high as wide. Mesial edge of tooth smoothly concave, with distal edge almost straight. Cusp small and very strongly distally inclined with apex not reaching distal edge of tooth. Crown enameloid extends about half way down labial face of tooth with semicircular termination. Base of enameloid extends one third of way down lingual face of tooth. Labial face typically with three large foramina, two at base of enameloid towards mesial and distal sides of tooth and a central foramen below the limit of enameloid. Weak horizontal trans− verse shelf with two foramina at base of enameloid on lingual face. Upper teeth symmetrical with elongate main cusp and single, or rarely double, pair of small lateral cusplets. Cusplets short and robust and closely attached to the main cusp with a continuous cutting edge. Outer edges of cusplets typically overhang lateral part of root. Root labio−lingually compressed and variable in height. Flat to faintly concave basal root face with gentle notch on linguo−basal edge giving the basal face a “heart−shaped” profile in all teeth.

Remarks
shark-references Species-ID=13265;
synonym of Palaeocentroscymnus horvathi after Pollerspöck et al. (2018) p. 449 (only lower teeth, fig. 8A–F) [25951];

References