Description: Overall: elongate Coiling: biserial Wall-Material: agglutinated Aperture Position: terminal Aperture Form: round oval reniform Ornamentation: none Lengths may be more than: 20mm differs from: other tubular Agglutinates by its enlarged proloculus, from Hyperammina by its size Remarks: wall compact and firmly cemented quartz grains and commonly with sponge spicules, often broken Distribution: Holocene |