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Showing results for tags 'osteolepiformes'.
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All material was found in a lag deposit layer on SW side of highway Rt120. SYSTEMATIC PALEONTOLOGY SARCOPTERYGII Romer, 1955 TETRAPODOMORPHA Ahlberg, 1991 MEGALICHTHYIDAE Hay, 1902 Diagnosis—Osteolepiform distinguished by a cosmine cover to dermal bones in combination with a premaxillary tusk that interrupts or lies lingual to the premaxillary marginal tooth row, contact between the subopercular and the second submandibular bones, and a distinct rostral process of the supratemporal that is without cosmine cover (Borgen and Nakrem, 2016). Diagnosis—A species of Megalichthys that is distinguished from previously described species by the presence of a pineal series of bones, the presence of a triangular principal gular, and the lack of sensory canal pores on the postparietal.
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From the album: Misha's Middle Devonian Fossils
Gyroptychius agassizi Frontal portion of large predatory osteolepiform sarcopterygian Eifelian Middle Devonian Sandwick Fish bed Orkney Scotland