Fossil vertebrate microremains were collected from 22 sampling levels between the Pragian/Emsian boundary stratotype point (base of the kitabicus Conodont Zone) and the mid-Emsian (excavatus Conodont Zone) in the Zinzilban section, Kitab State Geological Reserve, Uzbekistan. The material includes scales of acanthodians Radioporacanthodes liujingensis (Wang) and Canadalepis basdenae Burrow, as well as chondrichthyan scales, and scales and dermal bone fragments of acanthothoracid placoderm Xiejiawanaspis pinus Burrow et al., other indeterminate acanthothoracids, and probably a buchanosteid. This restricted fauna shows the closest resemblance with contemporaneous vertebrate assemblages from Sichuan Province in China, Salair in Siberia, Russia, and southeastern Australia.
