Description
Original diagnosis after Guinot, Hautier, Sambou & Martin, 2023 [31795]: Ptychotrygonid species with sub-oval to triangular teeth not exceeding 2 mm in width. Crown low, mesio-distally elongated and devoid of main cusp. Wide and high transverse crest separating the lingual and labial faces and not reaching the marginal angles. Coarse secondary crest in the middle of the labial face not reaching the marginal angles nor the extremities of transverse crest. Acute and triangular labial crown edge with narrow and rounded apron projecting labially and basally. Fewshort and coarse ridges between secondary crest and labial crown edge. Upper region of lingual crown face concave and inclined; flat and abrupt lower region. Marked horizontal lingual ridge not reaching marginal angles. Wide and rather short uvula with rounded lower edge. Root holaulacorhize, moderately high with triangular, inclined and slightly flared basal lobe faces. Wide nutritive groove with central foramen. Pair of margino-lingual foramina and slightly scalloped basal edge lingual root face.

Remarks
shark-references Species-ID=16482;

References