Late Ashgill-Early Llandovery ostracodes from the Zeravshan-Gissar Mountainous Region (Shakhriomon-2 Reference Section): Platycopida, Metacopida and Podocopida. Paleontologicheskii Zhurnal, 4, Iyul'-Avgust 1999: 57-66. 59 [Zoological Record Volume 136]