ABSTRACT An incomplete posterior dorsal vertebra ZIN PH 2646/16 from the Upper Cretaceous (Turonian) Bissekty Formation of Uzbekistan has a highly pneumatized centrum and neural arch. The centrum has a lateral pneumatic foramen that is divided by a septum. The neural arch is invaded through a lateral pneumatic foramen above the neurocentral suture and has deeply excavated prezygapophyseal-centrodiapophyseal and centrodiapophyseal fossae. The interior of the preserved portion of the neural spine is pneumatic. In the structure of the fossae on the neural arch and the presence of a double pneumatic foramen on the centrum, ZIN PH 2646/16 closely resembles the carcharodontosaurid Acrocanthosaurus from the Early Cretaceous of North America. Thus, we identify ZIN PH 2646/16 as Carcharodontosauridae indet. Carcharodontosauridae were previously known from the Bissekty Formation from Ulughbegsaurus uzbekistanensis, which is based on an incomplete maxilla.
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