Type species. Gourarites hagarkarim Bockwinkel et al., 2010


2010. Bockwinkel et al., 2010, p. 248.


Diagnosis. Major ontogenetic changes of shell morphology ; adult shell discoidal with rapidly expanding whorls (WER above 2.10 in stages with a shell dm > 10 mm); juvenile whorl cross section very broad crescent-shaped; umbilicus wide to very wide in juveniles and narrow or almost closed in the adult stage. Constrictions on mold parallel to the growth lines. Very narrow to narrow, V-shaped external lobe with gently sinuous, slightly diverging flanks; ventral prongs hook-shaped; median saddle very low or low; ventrolateral saddle usually broadly rounded; adventive lobe V-shaped, often much shallower than the external lobe. Differs from Bollandites and Timimounia in the strongly sinuous flanks of the external lobe and from Semibollandites in the much narrower umbilicus at juvenile stage