Rhynchonellata - Spiriferida

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

Sister taxa: Elythidae, Reticulariidae, Thomasariidae

Subtaxa: Bojothyridinae, Quadrithyridinae, Xenomartiniinae

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Type: Xenomartinia

Ecology: stationary epifaunal suspension feeder