†subfamily Gastroplitinae Wright 1952 (ammonite)
Parent taxon: Ammonitida according to J. A. Jeletzky 1980
Sister taxa: Ammonitina, Ancylocerina, Ataxioceratidae, Cardiocerina, Haplocerina, Psilocerina, Pulchelliidae, Stephanocerina
Subtaxa: Anagastroplites, Paragastroplites, Pseudogastroplites, Pseudopulchellia, Stelckiceras, Stotticeras
Ecology: fast-moving nektonic carnivore