HERONALLENIA Chapman and Parr. 1931

Type species: Discorbina wilsoni Heron-Allen and Earland, 1922 (_*1473), p. 206: OD.Heronallenia Chapman and Parr. 1931(*5⁴1), p. 236. Metaheronallenia McCulloch. 1977(*196) p.318: type species: Metaheronallenia rugosiformis McCulloch, 1977: OD.Neoheronallenia McCulloch. 1977(*1961), _p, 319: type species: Neoheronallenia craigi McCulloch, 1977; OD. Planoheronallenia McCulloch- 1977(^*1961) p. 322: type species: Planoheronallenia aenmanerois McCulloch,1977: OD.Subheronallenia McCulloch. 1977 (*1961), _p. 323; type species: Subheronallenia crosbyi McCulloch, 1977: OD. Guyhoytina McCulloch. 1981 (*1962), p. 149: type species: Guyhoytina helenae McCulloch I981: OD.Test ovate to auriculate in outline, planoconvex, low trochospiral coil with one or two rapidly widening whorls, chambers crescen­tic on the gently convex spiral side, subtri­angular on the flat to centrally concave umbil­ical side, sutures curved. thickened and flush on the spiral side, radial and depressed on the umbilical side, periphery carinate; wall calcareous, optically radial, finely perforate, surface smooth on the spiral side, radially grooved on the umbilical side; aperture a low to high interiomarginal and umbilical arch, may have an umbilical lobe just posterior to the opening on the final chamber, aperture secondarily closed by an umbilical plate as new chambers are added, apertures of earlier chambers not overlapped by the succeeding chambers but closed by the later formed plates that remain visible around the umbilicus. Eocene to Holocene; cosmopolitan.