Cephalopoda - Ammonitida - Hildoceratidae

Full reference: M. Collignon. 1958. Atlas des fossiles caractéristiques de Madagascar (Ammonites). Fascicule I (Lias, Bajocien). 1-12,Pl.I-V

Belongs to Protogrammoceras according to M. Collignon 1958

Sister taxa: Protogrammoceras (Fieldingiceras), Protogrammoceras (Matteiceras), Protogrammoceras (Protogrammoceras), Protogrammoceras bassanii, Protogrammoceras ionicus, Protogrammoceras normanianum, Protogrammoceras pseudodilectum, Protogrammoceras serotinum, Protogrammoceras sublaeve, Protogrammoceras (Argutarpites) meneghinii, Protogrammoceras (Paltarpites) madagascariense, Protogrammoceras (Paltarpites) gabillyi, Protogrammoceras (Paltarpites) paltum, Fuciniceras (Paltarpites) aequiondulatum

Type specimen: UBGD.010018

Ecology: fast-moving nektonic carnivore

Distribution: there are no occurrences of Protogrammoceras thevenini in the database

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Specimen images are retrieved through the ePANDDA API.