ammonites
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†superfamily Hildoceratoidea Hyatt 1867 (ammonite)

Cephalopoda - Ammonitida

PaleoDB taxon number: 257826

Alternative spelling: Hildocerataceae

Synonyms: Hammatoceratoidea Schindewolf 1964 (no. 184515), Harpoceracea Wedekind 1917 (no. 350958), Harpocerataceae Wedekind 1917 (no. 350959)

Parent taxon: Ammonitina according to M. K. Howarth 2013

Sister taxa: Acanthoceratoidea, Deshayesitoidea, Desmoceratoidea, Engonoceratoidea, Eoderoceratoidea, Haploceratoidea, Hoplitoidea, Lytoceratoidea, Neokanabiceras, Psiloceratoidea, Pulchelliaceae, Sphaeroceratoidea, Spiroceratoidea, Stephanoceratoidea, Tetragonitoidea

Subtaxa: Diplesioceras, Graphoceratidae, Hammatoceratidae, Hildoceratidae, Phymatoceratidae, Sonniniidae

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Ecology: fast-moving nektonic carnivore