Rhynchonellata - Spiriferida - Trigonotretidae

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

Type: Neospirifer wairakiensis

Ecology: stationary epifaunal suspension feeder

Subtaxa: Aperispirifer crassicostatus, Aperispirifer lethamensis, Aperispirifer nelsonensis, Aperispirifer ovalis, Aperispirifer undatus, Aperispirifer wairakiensis (view classification)