Cephalopoda - Ammonitida - Hammatoceratidae

Alternative combination: Hammatoceras costulosum

Belongs to Geczyceras according to M. Benzaggagh 2024

See also Kovács and Géczy 2008

Sister taxa: Geczyceras allobrogense, Geczyceras bonarellii, Geczyceras clausum, Geczyceras costatum, Geczyceras galaczi, Geczyceras martinezae, Geczyceras perplanum, Geczyceras porcarellense, Geczyceras speciosum

Distribution: found only at Lower member, Small ravine near Douar Amergou (Jurassic of Morocco)

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Specimen images are retrieved through the ePANDDA API.