FIRST DISCOVERY OF LATE PALEOZOIC RADIOLARIANS IN THE EASTERN YAKUTIYA

Some assemblages of Late Paleozoic radiolarians are first established in Yakutiya. The radiolarians occur in hemipelagic deposits reduced in thickness. They are extracted from siliceous tuffites by using the hy drofluoric acid and studied under a scanning electron microscope. In t otal, five radiolarian assemblages are detected: two Early Carbonifero us assemblages with Albaillella cf. paradoxa and Albaillella indensis, two Early Permian assemblages with Latentifistula astricta and Spinod eflandrella cf. sinuata, and one Late Permian assemblage with Follicuc ullus cf. scholasticus. The most representative assemblage is that wit h Albaillella indensis of the Tournaisian-Visean. Three species of thi s assemblage (Albaillella paradoxa Deflandre, A. indensis Won, and A. uncus Won) are described.