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Octopus beak
Octopus beak






octopus beak octopus beak

Size and function of ammonite aptychi in comparison with buccal masses of modem cephalopods. Aptychi: the myth of the ammonite operculum. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 266(1): 9–18. Comparative morphology of modern and fossil coleoid jaw apparatuses. First record of a belemnite preserved with beaks, arms and ink sac from the Nusplingen Lithographic Limestone (Kimmeridgian, SW Germany). Late Cretaceous octobrachiate coleoid lower jaws from the north Pacific regions. Abhandlungen der Geologischen Bundesanstalt, Wien 57: 157–165. Morphological diversity of the jaws of Cretaceous Ammonoidea. Bulletin of Gumma Museum of Natural History 2: 23–34. New vampyromorph (Coleoidea: Cephalopoda) jaw apparatuses from the Late Cretaceous of Japan. New data on the jaw apparatus of fossil cephalopods. Two coleoid jaws from the Upper Cretaceous of Hokkaido, Japan.








Octopus beak