Cenomanian Radiolarians and Stratigraphy of the Sel’-Bukhra Mountain Section, Republic of Crimea

• Published in: Stratigraphy and geological correlation Vol. 31; no. 4; pp. 313 - 327
• Main Authors: Bragina, L. G., Bragin, N. Yu
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01-08-2023; Springer Nature B.V
• Subjects: Archaeology; Earth and Environmental Science; Earth Sciences; Geophysics/Geodesy; Historical Geology; Mountains; Sedimentology; Stratigraphy; Structural Geology; microfossils; Cretaceous system; stratotype; Tethyan Superrealm; zone
• ISSN: 0869-5938; 1555-6263
• DOI: 10.1134/S0869593823040020

New radiolarian data from the type section of the middle Cenomanian Pseudoaulophacus lenticulatus Zone located on the northern and southern slopes of the Sel’-Bukhra Mountain section (southwestern Crimea) are reported. The identification of five species (
Patulibracchium davisi
Pessagno,
Triactoma micropora
Bragina,
Microsciadiocapsa sutterensis
Pessagno,
Obeliscoites maximus
(Squinabol), and
Rotaforma mirabilis
Pessagno) previously unknown in the section of Crimea allowed us to complete the information available with data on the taxonomic diversity of Cenomanian radiolarians of Crimea. The description of the lower part of the upper Cenomanian Triactoma parva Zone from the southern slope of the Sel’-Bukhra Mountain section is reported. Both the Pseudoaulophacus lenticulatus and Triactoma parva zones include more than 60% of species distributed in the Tethyan Superrealm.