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Protetragonites Hyatt 1900 (ammonite)

Cephalopoda - Ammonitida - Lytoceratidae

PaleoDB taxon number: 15486

Alternative spelling: Lytoceras (Protetragonites)

Synonyms: Hemitetragonites Spath 1927 (no. 14987), Leptotetragonites Spath 1927 (no. 15111)

Parent taxon: Lytoceratinae according to M. W. Maisch and A. Salfinger-Maisch 2016

Sister taxa: Carinolytoceras, Lobolytoceras, Lytoceras, Ptycholytoceras, Zaghouanites

Subtaxa: Hemitetragonites aeolus, Hemitetragonites strangulatus, Protetragonites crebrisulcatus, Protetragonites quadrisulcatus, Protetragonites tauricus, Protetragonites zuegeli

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Ecology: fast-moving nektonic carnivore