Radiolarian and planktonic foraminiferal biochronology of the Soğukçam Limestone Group, Elmadağ Olistostrome, and Unaz Formation (Ankara region, central Türkiye): Insights into the Cretaceous evolution of the Sakarya Continent and overlying units

Tekin, U. Kağan; Sarı, Bilal; Tuncer, Alaettin; Sayit, Kaan; Okuyucu, Cengiz; Güzgün, Çağrı

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Plate 6: Scanning electron micrographs of the Early Cretaceous (early Hauterivian-early Aptian) radiolarian microfauna from the Seyran Formation within the Soğukçam Limestone Group in the Uyuzhamamı section. A-B. Acanthocircus multidentatus (Squinabol): A. Uy-3, B. Uy-5, scale bar = 270 and 300 µm, respectively; C-D. Acanthocircus simplex (Squinabol): C. Uy-5, D. Uy-7, scale bar for both specimens = 300 µm; E-G. Acanthocircus venetus (Squinabol): E. Uy-3, F. Uy-5, G. Uy-11, scale bar 400, 400, and 320 µm, respectively; H-J. Aurisaturnalis carinatus inconstans Dumitrica & Dumitrica-Jud: all from Uy-3, scale bar for all specimens = 270 µm; K. Aurisaturnalis carinatus carinatus Dumitrica & Dumitrica-Jud: Uy-5, scale bar = 240 µm; L. Aurisaturnalis carinatus perforatus Dumitrica & Dumitrica-Jud: Uy-6, scale bar = 300 µm; M. Eospongosaturninus breggiensis Dumitrica & Hungerbühler: Uy-3, scale bar = 230 µm; N. Vitorfus campbelli Pessagno: Uy-11, scale bar = 220 µm; O. Archaeodictyomitra excellens (Tan Sin Hok): Uy-7, scale bar = 180 µm; P-R. Archaeodictyomitra lacrimula (Foreman): P. Uy-1, Q. Uy-7, R. Uy-10, scale bar = 180, 140, and 130 µm, respectively; S-U. Archaeodictyomitra leptocostata (Wu & Li): S. Uy-1, T. Uy-10, U. Uy-10, scale bar for all specimens = 180 µm; V-X. Archaeodictyomitra longovata Dumitrica: V. Uy-7, W. Uy-9, X. Uy-10, scale bar for all specimens = 170 µm; Y-AA. Archaeodictyomitra mitra Dumitrica: Y. Uy-1, Z-AA. Uy-3, scale bar = 160, 160, and 140 µm, respectively; AB-AD. Archaeodictyomitra mostleri Tekin nov. sp.: AB. Holotype, Uy-3, AC-AD. Paratypes, all from Uy-3, scale bar = 210, 180, and 190 µm, respectively; AE. Archaeodictyomitra sp. A: Uy-10, scale bar = 170 µm; AF-AG. Thanarla pacifica Nakaseko & Nishimura: AF. Uy-7, AG. Uy-11, scale bar for both specimens = 170 µm; AH-AI. Thanarla pulchra (Squinabol): AH. Uy-7, AI. Uy-10, scale bar for both specimens = 150 µm; AJ. Amphipyndax mediocris (Tan Sin Hok): Uy-11, scale bar = 150 µm; AK-AM. Obeliscoites dorysphaeroides (Neviani): AK-AL. Uy-10, AM. Uy-11, scale bar = 240, 230, and 270 µm, respectively; AN-AP. Mirifusus chenodes (Renz): AN-AO. Uy-7, AP. Uy-10, scale bar = 220, 210, and 200 µm, respectively; AQ-AS. Svinitzium pseudopuga Dumitrica: AQ. Uy-3, AR-AS. Uy-6, scale bar = 150, 160, and 170 µm, respectively.