Сейчас занимаюсь обработкой старых фотографий каневских зубов. Также заканчиваю черновик публикации, за последние 4 года материала накопилось много, к тому же локация довольно интересная и практически неизученная.
Сохранность данного образца неидельная, однако этот вид встречается нечасто и целые образцы еще более редки.
Буду очень благодарен за конструктивную критику.
Family Pseudoscapanorhynchidae Herman, 1979
Genus Pseudoscapanorhynchus Herman, 1977
Pseudoscapanorhynchus cf. compressidens Herman, 1977
Material. 45 partial and almost complete teeth (1 from layer 2a, 1 from layer 2b, 31 from layer 2c of Melanchyn potik, 11 from Kholodnyi). Numbers can be incorrect, because isolated crowns are sometimes indistiguishable from Eostriatolamia.
Description. Crown is sigmoid and mesio-distally compressed. Lingual face is strongly convex, while labial is only slightly convex. Labial face is reduced because of the labial position of the cutting edge, which ends before reaching the base of the crown. Lateral cusplets are fully individualized and follow the shape of the crown. Root has a strong lingual protuberance with a weak nutrient furrow. In the teeth positioned closer to jaw symphysis, root lobes are almost completely merged.
Remarks. Pseudoscapanorhynchus teeth are known since Cenomanian [Guinot et al., 2013]. Therefore, its presence in the same sand layer with Paraisurus, which is typically indicative of Albian age of deposits, may suggest this species originated earlier.

Ключевые слова (тэги): зубы, акулы, зубы акул, Канев, Pseudoscapanorhynchus