Alternative spelling: Ammonoida
Parent taxon: Ammonoidea according to J. Lehmann et al. 2016
See also Arkell et al. 1957, Boyle and Rodhouse 2005, Cecca 1997, Edmunds et al. 2016, Furnish et al. 2009, Hemming 1957, Henderson 1990, Howarth 2013, Kennedy et al. 1997, Kennedy et al. 1997, Kennedy et al. 1998, Kennedy et al. 1981, Kennedy et al. 1992, Kennedy and Klinger 1990, Kiessling 2003, Klinger and Kennedy 1984, Klinger and Kennedy 1989, Klinger and Kennedy 1992, Klinger and Kennedy 1993, Krystyn et al. 2019, Landman et al. 2007, Lukeneder and Lukeneder 2018, Medina and Riccardi 2005, Meister and Friebe 2003, Nakada et al. 2021, Pavia 2007, Pohle et al. 2022, Sarih et al. 2007, Sepkoski 2002, Shevyrev 2006, Smith 1927, Stanton 1895, Summesberger 1980, Tozer 1994, Wild and Stilwell 2016, Wright et al. 1996, Zittel 1884 and Đaković 2017
Sister taxa: none
Subtaxa: Agoniatitida Ammonites Ammonitina Ancyloceratina Ancylocerina Cardiocerina Haploceratina Olcostephanina Perisphinctina Protancyloceratina Psilocerina Stephanocerina
Ecology: fast-moving nektonic carnivore