Rhynchonellata - Spiriferida - Hysterolitidae

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

See also Sepkoski 2002

Sister taxa: Antispirifer, Arduspirifer, Australospirifer, Brachyspirifer, Costellispirifer, Dixonella, Dyticospirifer, Euryspirifer, Hysterolites, Otospirifer, Paraspirifer, Patriaspirifer, Rostrospirifer, Xinjiangospirifer

Subtaxa: none

Ecology: stationary epifaunal suspension feeder

Distribution: there are no occurrences of Trigonospirifer in the database

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Specimen images are retrieved through the ePANDDA API.