CHUBBINA Robinson, 1968
Type species: Chubbina jamaicensis Robinson, 1968; OD.Chubbina Robinson, 1968 (*2633), p. 527.
Test large, up to 8 mm in diameter and about 1.5 mm in thickness, globular or lenticular in early stage, later flaring and peneropline, spherical megalospheric proloculus followed by single undivided tubular chamber, micro-spheric early stage milioline, later with numerous whorls, at first streptospiral, later planispiral with the number of chambers per whorl increasing to about fifteen, chambers increase rap-idly in height as added so that the adult test is uncoiled and flabelliform, interior subdivided by numerous primary and secondary axially aligned septula, central thickening and numerous residual pillars present in the preseptal space as in Rhapydionina: wall calcareous, porcelaneous; aperture multiple, with openings scattered uniformly over the apertural face of the final chamber, previous foramina connecting successive chamberlets. U. Cretaceous (Campanian to Maastrichtian); Jamaica; Mexico; Cuba; USA: Florida.
Remarks: As the type species was described on the basis of cotypes, without selection of a holotype, the specimen (BMNH no. P-48049) figured by Robinson (1968, pl. 101, fig. 1) is here designated as lectotype.