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 Acanthotetrapaurinella kennecottensis (Carter in Longridge, Carter, Smith & Tipper, 2007 ) Group ( Fig. 8 A-H) Tipperella kennecottensis Carter in Longridge, Carter, Smith & Tipper, 2007: 163-164 , pl. 2, figs 7, 11. Spongotrochus sp. – Carter 1994 : pl. 1, fig. 7. — Carter & Hori 2005 : pl. 1A, fig. 4; pl. 1B, fig. 4. Tozerium nascens – Tekin 2002a: 189 , pl. 4, fig. 1. Acanthotetrapaurinella kennecottensis – Dumitrica et al. 2013: 318 . OCCURRENCE. — Upper Triassic , Rhaetian-Lower Jurassic, lower Sinemurian of Queen Charlotte Islands, British Columbia , Canada ; Inuyama Area , Japan ; Antalya Nappes, NE of Antalya city and Mersin Mélange, NW of Mersin city, southern Turkey . REMARKS Acanthotetrapaurinella kennecottensis Group includes three different morphotypes: a . Subtetrahedral test with polygonal pore frames and long primary spines (e.g. Tipperella kennecottensis [ Longridge et al. 2007 : only pl. 7, fig. 7; Carter & Hori 2005 : pl.1A, fig.4; pl.1B,fig.4]); b . Subtetrahedral test with polygonal pore frames and short primary spines(e.g. Tipperella kennecottensis [this study: Fig. 8 A-F); and c . Subsphaerical to subtetrahedral test with spongy meshwork (e.g. Spongotrochus sp. [ Carter 1994 : pl. 1, fig.7]; Tipperella kennecottensis [ Longridge et al. 2007 : pl.7 fig.11]; Tozerium nascens Whalen & Carter, 1998 [ Tekin 2002a: 189 , pl.4, fig.1]; Tipperella kennecottensis [this study: Fig.8 G-H]).