Aptychotrema massoniae is an extinct species of guitarfish, belonging to the family Rhinobatidae. Its only known fossil remains belong to the of Cenomanian…
Aptychotrema massoniae is an extinct species of guitarfish, belonging to the family Rhinobatidae. Its only known fossil remains belong to the of Cenomanian age.Bernárdez, E. (2002). Los dientes de seláceos del Cretácico de la depresión central asturiana. Univ. d'Oviedo: 1–476.
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