Thurstonia gibsoni, Whalen & Carter in Carter, Whalen & Guex, 1998

Tekin, Kagan, Krystyn, Leopold, Okuyucu, Cengiz, Bedi, Yavuz & Sayit, Kaan, 2020, Late Triassic to Early Jurassic radiolarian, conodont and ammonite assemblages from the Tavuscayiri block, Mersin Mélange, southern Turkey: Time constraints for the T / J boundary and sedimentary evolution of the southern margin of the northern Neotethys, Geodiversitas 42 (27), pp. 493-537 : 510

Thurstonia gibsoni Whalen & Carter in Carter, Whalen & Guex, 1998 ( Fig. 7 K-M)

Thurstonia gibsoni Whalen & Carter in Carter, Whalen & Guex, 1998: 42 , pl. 6, figs 1-2. — Hori et al. 2004: pl. 5, fig. 6. — Goričan et al. 2006: 378-379, pl. THU01, figs 1, 2,?3.

Thurstonia sp. aff. T. gibsoni – Tekin 2002a: 188, pl. 3, fig. 20.

OCCURRENCE. — Lower Jurassic, lower Hettangian-upper Hettangian of Queen Charlotte Islands, British Columbia, Canada; Guwayza Formation, Oman; Japan;? Antalya Nappes, NE of Antalya city and Mersin Mélange, NW of Mersin city, southern Turkey.

REMARKS

Although, this species was reported from slightly younger strata (Pliensbachian) in the Tawi Sadh Member of the Guwayza Formation, Oman ( Goričan et al., 2006), the assignment of this specimen is not clear, if we compare it to the holotype. Because of this, we followed the range (middle to upper Hettangian) of this taxon reported by Carter et al. (1998).

Figures

FIG. 7. — Photomicrographs of the radiolarians from the Orbuklukeli section:A-D, Praeudalia rhaeticaTekin, n. gen.,n. sp.; A, Holotype,Orbuk-15;B-D, Paratypes, Orbuk-15; E, Udalia dennisoni Whalen & Carter in Carter, Whalen & Guex, 1998, Orbuk-32; F-G, Udalia infrequens Tekin, n. sp.; F, Holotype, Orbuk-36; G, Paratype, Orbuk-36; H-J, Udalia primaeva Whalen & Carter in Carter, Whalen & Guex, 1998, Orbuk-27; K-M, Thurstonia gibsoni Whalen & Carter in Carter, Whalen & Guex, 1998, Orbuk-26; N, Thurstonia minutaglobus Whalen & Carter in Carter, Whalen & Guex, 1998, Orbuk-32; O, Thurstonia timberensis Whalen & Carter in