The Parvicingulakhabakovi–Williriedellum salymicum Radiolarian Biohorizon in the West Siberian Bazhenov Formation (Berriasian–Valanginian)

Autor:	Yu. A. Gatovsky, V. A. Kozlova, V. S. Vishnevskaya
Rok vydání:	2019
Předmět:	0106 biological sciences 010506 paleontology Paleontology 010607 zoology 01 natural sciences Western siberia Geology Cretaceous 0105 earth and related environmental sciences
Zdroj:	Paleontological Journal. 53:808-811
ISSN:	1555-6174 0031-0301
DOI:	10.1134/s0031030119080239
Popis:	Three-dimensional SEM images of the radiolarian species Williriedellum salymicum Kozlova, 1983 were obtained for the first time, from the Berriasian–Valanginian Parvicingula khabakovi – Williriedellum salymicum biohorizon of the Bazhenov Formation (based on material from the Gubkinskaya and Radonezh boreholes). Using computer tomography (CT) and scanning electron microscopy (SEM) methods, in addition to optical microscopy, we were able to confirm the validity of the species Williriedellum salymicum Kozlova, 1983 and we propose that this biohorizon be included in the Lower Cretaceous regional stratigraphic scheme of Western Siberia.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::56f35760f4ef6e44a987c777d225fcfd https://doi.org/10.1134/s0031030119080239 Zobrazit plný text záznamu Full text from SpringerLink