|mhorn||Дата: Thursday, 19.07.2012, 11:32 | Сообщение # 1|
|Popov E.V., Efimov V.M. (2012) New Records of the Chimaeroid Genus Stoilodon Nessov & Averianov, 1996 (Holocephali, Chimaeroidei) Remains from the Late Jurassic and Early Cretaceous of European Russia // Proceedings of Saratov University. Vol. 12. Ser. Earth Sciences., iss. 1. P.66-79. [in Russian with English summary] |
Based on new finds of mandibular tooth plates of the chimaeroid Stoilodon aenigma Nessov &Averianov, 1996 (Holocephali, Chimaeroidei) from the Lower Cretaceous of central Russia, the diagnosis of the genus is modified and validity of the taxon is confirmed. New record of mandibular plate of the species from the Ryazanian regional stage (boreal Berriasian stage) of the Moscow Region has allowed us to expand stratigraphical distribution of the species within the whole early Cretaceous. It is estimated that Stoilodon did not exceed 1.5 m in body length. An additional mandibular tooth plate from the latest Jurassic (middle Volgian substage, nikitini zone) of Gorodischi section, Ul’yanovsk Region is referred to the genus Stoilodon. It indicates a broader geographic distribution of the genus and its pre-Cretaceous origin.
Middle Jurassic - Lower Cretaceous ammonites & aptychi