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Hypengonoceras Spath 1922 (ammonite)

Cephalopoda - Ammonitida - Knemiceratidae

PaleoDB taxon number: 15023

Full reference: L. F. Spath. 1922. On Cretaceous Ammonoidea from Angola collected by Professor J. W. Gregory, D Sc, FRS. Transactions of the Royal Society of Edinburgh 53:91-160

Parent taxon: Knemiceratidae according to L. G. Bulot 2010

Sister taxa: Glottoceras, Knemiceras, Parengonoceras, Platiknemiceras

Subtaxa: Hypengonoceras chouberti, Hypengonoceras decaryi, Hypengonoceras fauremuretae, Hypengonoceras tarfayense, Hypengonoceras warthi

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Type: Placenticeras warthi

Ecology: fast-moving nektonic carnivore