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 Author Tekin, Kagan Author Krystyn, Leopold Author Okuyucu, Cengiz Author Bedi, Yavuz Author Sayit, Kaan text Geodiversitas 2020 2020-11-26 42 27 493 537 journal article 10.5252/geodiversitas2020v42a27 20141273-3452-4388-b6a8-aab9193c87fe 1638-9395 4447758 urn:lsid:zoobank.org:pub:1A437774-B5BE-49F2-8DEF-D46F2790484A Gorgansium alpinum Kozur & Mostler, 1990 ( Fig. 6C, D ) Gorgansium alpinum Kozur & Mostler, 1990: 216 , pl. 16, fig. 12. — Tekin 2002a: 179 , pl. 1, figs 1-2. Gorgansium sp. A – Igo & Nishimura 1984 : pl. 3, figs 18,?20,?21,?23; pl. 4, fig. 8. OCCURRENCE. — Lower Jurassic , middle Hettangian-lower Sinemurian of Karasawa , Kuzu town , Japan ; Bavaria , Germany ; Antalya Nappes, NE of Antalya city and Mersin Mélange, NW of Mersin city, southern Turkey .