Taylor, S. H., Patterson, R.T. and Choi, H. W., 1985, Occurrence and reliability of internal morphologic features in some Glandulinidae (Foraminiferida). Journal of Foraminiferal Research, 15 (1): 18-23.
Specimens of some glandulinid foraminifers have been critically examined to assess the validity of recently defined genera and their separation from Glandulina. The genus Tappanella, with T. arctica as type species, differs from Glandulina in the prominent biserial stage of the specimens examined. The genus Euglandulina, type species E. inusitata, is here restricted to those species with an asymmetrical entosolenian tube, attached to one wall of the terminal chamber. The formerly invalid genus Barnardina and type species B. thanetana have been validated by provision of a diagnosis and description. Glandulinoides, type species G. yunnanensis, from the Triassic of China, differs from these genera in the short centrally located entosolenian tube and absence of a biserial early stage.