Family Thomasinellidae Loeblich and Tappan 1984 (foram)
Nodosariata - Hormosinoidea - Thomasinellidae
Parent taxon: Hormosinacea according to A. R. Loeblich and H. Tappan 1988
Sister taxa: Aschemocellidae, Cribratinidae, Dusenburyinidae, Hormosinidae, Reophacidae, Telamminidae
Subtaxa: Protoschista Thomasinella
Ecology: stationary semi-infaunal omnivore
Distribution: