Suborder Gymnoblastina Bayer et al. 1956
Full reference: F. M. Bayer, H. Boschma, H. J. Harrington, D. Hill, L. H. Hyman, M. Lecompte, E. Montanaro-Gallitelli, R. C. Moore, E. C. Stumm and J. W. Wells. 1956. Treatise on Invertebrate Paleontology, Part F, Coelenterata. Treatise on Invertebrate Paleontology
Parent taxon: Hydroida according to F. M. Bayer et al. 1956
Sister taxa: Archaeonectris, Calyptoblastina, Cambrohydra, Chondrophorina, Clyxhydra, Drevotella, Flexihydra, Inocaulis, Lafoeidae, Mazohydra, Palaeacmea, Palaeonectris, Parleria, Pontifennia, Protulophila, Psammactinia, Rhabdohydra, Thecata
Subtaxa: Hydractiniidae Oceaniidae
Ecology: stationary epifaunal carnivore-suspension feeder
Distribution: there are no occurrences of Gymnoblastina in the database