Emended diagnosis. Annulated orthocones with slender,central to subcentral, tubular or moderately expanded si-phuncle. Septal necks very short and can vary betweenachoanitic, suborthochoanitic, or very short cyrtochoanitic insome developed species. Shell ornamented with a reticulatepattern of growth lines and fine longitudinal raised lines, orwith transverse festoons. Apical shell large, without cicatrix,without initial constriction, apex blunt, annulated or smooth,transverse or longitudinal ornamentation may occur. Incipi-ent annulosiphuncular deposits, and mural cameral depositsare known