PROTENTELLA Lipps, 1964

 

 

Type species: Protentella prolixa Lipps, 1964; OD.

Protentella Lipps, 1964 (*1871), p. 122.Test small, flattened, biumbilicate, globu­lar chambers increasing rapidly in size as added, early stage in low trochospiral, later planispiral, five to six radially elongate chambers in the final whorl, sutures radial, depressed, periphery rounded, peripheral outline deeply lobulate; wall calcareous, perforate, surface cancellate in appearance with deep circular to polygonal pore pits and steep pore ridges; aperture a high interiomarginal equatorial arch bordered by a thickened lip. L. Miocene (Burdigalian) to M. Miocene (M. to U. Ser­ravalian); USA: California; English Channel.