1 23 Paläontologische Zeitschrift Scientific Contributions to Palaeontology ISSN 0031-0220 Volume 87 Number 3 Paläontol Z (2013) 87:345-395 DOI 10.1007/s12542-012-0161-1 Taxonomic study of spongy spumellarian Radiolaria with three and four coplanar spines or arms from the middle Carnian (Late Triassic) of the Köseyahya nappe (Elbistan, SE Turkey) and other Triassic localities Paulian Dumitrica, Ugur Kagan Tekin & Yavuz Bedi