New findings of seeds and fruits from Cenomanian–Turonian deposits of Western Siberia

Abstract

Three-dimensional remains of seeds and fruits originating from Cenomanian–Turonian deposits of the Simonovo Suite are reported from one locality at the Kem’ River near the village Maslennikovo (58°11'24.8"N, 91°54'24.2"E) and from six localities at the Kiya River near the village Kubayevo (56°04'27.5"N, 87°52'22.4"E; 56°04'39.6"N 87°52'19.0"E; 56°04'39.6"N, 87°52'20.9"E), from the south of Western Siberia. The majority of the findings studied belong to undescribed genera of gymnosperms and flowering plants. The Maslennikovo collection has yielded seeds of Alapaja cf. uralensis Dorofeev (Cupressaceae) and Liriodendroidea Knobloch et Mai (Magnoliaceae), fruits of Porosia cf. verrucosa (Lesq.) Hickey, as well as platanaceous heads. The Kubayevo collections contain seeds and remains of a female cone of cf. Krassilovidendron fecundum Sokolova, Gordenko et Zavialova (Cupressaceae), seeds of Saccospermum cf. trebecense Knobloch et Mai and fruits or seeds of Spirellea Knobloch et Mai (angiosperms of unknown affinities). Despite having originated from deposits of the same suite, the Maslennikovo and Kubayevo collections almost don’t have overlapping forms.