Aculifera

Parent taxon: Sachitida according to J. Vinther et al. 2017

See also Sutton et al. 2025

Sister taxa: Adversella, Carubacgutes, Halkierioidea, Hippopharangites, Miriella, Quadrochites, Siphogonuchitidae, Siphogonuchitoidea, Orthrozanclidae, Australohalkieria, Wiwaxia

Subtaxa: Aplacophora Halkieriidae Inughuitoconus

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Ecology: epifaunal grazer

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