Rhynchonellata - Spiriferida

Full reference: W. King. 1846. Remarks on certain genera belonging to the class Palliobranchiata. Annals and Magazine of Natural History, series 1 183:26-42

Parent taxon: Spiriferoidea according to A. Williams et al. 2006

Sister taxa: Choristitidae, Imbrexiidae, Reticulariacea, Spiriferellidae, Trigonotretidae

Subtaxa: Allanaria, Brachythyrinae, Delthyrinae, Ovispirifer, Prospirinae, Purdonellinae, Sergospiriferinae, Spiriferinae

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Type: Spirifer

Ecology: stationary epifaunal suspension feeder