Vaginulina d'Orbigny 1826 (foram)
Parent taxon: Lagenidae according to G. Wienrich 1997
Sister taxa: Alfredosilvestris, Awhea, Botuloides, Chrysalogonium, Citharina, Cribronodosaria, Dentalinoides, Dentalinopsis, Enatiodentalina, Frondiculariinae, Grigelis, Kriptoseptida, Laevidentalina, Lagenoglandulina, Lenticulininae, Lingulininae, Marginulina, Marginulinopsis, Mucronina, Nodomorphina, Pandaglandulina, Planularia, Pseudonodosaria, Pyramidulina, Rectoglandulina, Robulus, Svenia, Darbyella, Dentalina, Frondicularia, Lingulina, Nodosaria, Hyalinonetrion, Procerolagena, Anturina, Lagena
Subtaxa: Vaginulina clathrata
Ecology: stationary semi-infaunal deposit feeder