Megacrioceratinae is an extinct ammonoid cephalopod subfamily. It has been described as family Megacrioceratidae in 2006, but later changed into subfamily under its current name.Vermeulen J. & Meister C. 2014. Nouvelles espèces du genre Garroniceras Vermeulen et al., 2012 (Ammonitida, Hamulinoidea, Hamulinidae, Megacrioceratinae). Riviera Scientifique 98: 73-90. Ammonites belonging to this subfamily lived from Plesiospitidiscus ligatus zone of Upper Hauterivian until Avramidiscus kiliani zone of Lower Barremian.
Genera Vermeulen (J.), Lazarin (P.), Lépinay (P.), Leroy (L.), Mascarelli (E.), Meister (C.) & Menkveld-Gfeller (U.), 2012 - Ammonites (Ancyloceratina, Turrilitina) nouvelles ou peu connues de l'Hauterivien supérieur. Annales du Museum d'Histoire Naturelle de Nice, t. 27, p. 271-318 Garroniceras Megacrioceras Bastelia Liautaudia
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