WThe Bissekty Formation is a geologic formation and Lagerstätte which crops out in the Kyzyl Kum desert of Uzbekistan, and dates to the Late Cretaceous Period. Laid down in the mid to late Turonian, it is dated to about 92 to 90 Ma.
WAidachar is an extinct genus of ichthyodectiform teleost ray-finned fish from the Late Cretaceous of Kyzyl Kum, central Asia. It was named by Lev Nesov in 1981. At first, he tentatively described the fossil material as the jaw fragments of a ctenochasmatid pterosaur, but reinterpreted Aidachar as a fish in 1986. The type species is A. paludalis.
WArchaeornithomimus is a genus of ornithomimosaurian theropod dinosaur that lived in Asia during the Late Cretaceous period, around 96 million years ago in the Iren Dabasu Formation.
WAzhdarcho is a genus of pterodactyloid pterosaur from the late Cretaceous Period of the Bissekty Formation of Uzbekistan, as well as the Zhirkindek Formation of Kazakhstan. It is known from fragmentary remains including the distinctive, elongated neck vertebrae that characterizes members of the family Azhdarchidae, a family that includes many giant pterosaurs such as Quetzalcoatlus. The name Azhdarcho comes from the Persian word azhdar (اژدر), a dragon-like creature in Persian mythology. The type species is Azhdarcho lancicollis. The specific epithet lancicollis is derived from the Latin words lancea and collum ("neck").
WBactrosaurus is a genus of herbivorous dinosaur that lived in Asia during the Late Cretaceous, about 96 million years ago. The position Bactrosaurus occupies in the Cretaceous makes it one of the earliest known hadrosauroids, and although it is not known from a full skeleton, Bactrosaurus is one of the best known of these early hadrosauroids, making its discovery a significant finding.
WBelonostomus or Diphyodus is a genus of prehistoric ray-finned fish that was described by Louis Agassiz in 1844. Fossils range from 99.6 million years ago to 66 million years ago.
WCaenagnathasia is a small caenagnathid oviraptorosaurian theropod from the Late Cretaceous of Uzbekistan.
WCretodus is an extinct genus of mackerel sharks belonging to the proposed family Pseudoscapanorhynchidae. It lived during the Late Cretaceous, approximately 100 to 89 million years ago. The genus is best known from formations formed in the Western Interior Seaway, but is also known from the late Cretaceous of Europe, Africa, and possibly Asia. It is mainly known from isolated teeth and vertebral centra, though a few associated dentitions and spines have been found.
WEuronychodon is the name given to a genus of coelurosaur dinosaur from the Late Cretaceous of Europe and Asia. Euronychodon is known from teeth only. These are similar to those of another coelurosaur tooth genus, Paronychodon.
WHybodus is an extinct genus of Chondrichthyans. First appearing towards the end of the Permian period, and disappearing during the Late Cretaceous, during the Triassic, Jurassic, and Cretaceous periods the hybodonts were especially successful and could be found in shallow seas across the world. For reasons that are not fully understood, the hybodonts became extinct near the end of the Late Cretaceous period.
WItemirus is a genus of theropod dinosaur from the Turonian age of the Late Cretaceous period of Uzbekistan.
WKansajsuchus is an extinct genus of goniopholidid mesoeucrocodylian. It is based on PIN 2399/301, a right premaxilla, one of the bones of the tip of the snout. This specimen was found in rocks of the lower Santonian-age Upper Cretaceous Yalovach Svita of Kansai, in the Fergana Basin of Tajikistan. Additional fossils including vertebrae and bony armor have been assigned to this genus. It would have been a large animal, estimated at up to 8 metres (26 ft) long. Kansajsuchus was described in 1975 by Mikhail Efimov. The type species is Kansajsuchus extensus.
WKhunnuchelys was a genus of trionychine turtle from the Late Cretaceous of Asia. Three species are known, K. erinhotensis, the type species, K. kizylkumensis, and K. lophorhothon. K. erinhotensis is known from the Iren Dabasu Formation in China from the late Turonian until the middle Campanian. K. kizylkumensis is known from the late Turonian Bissekty Formation of Uzbekistan. The third species, described in 2013 by Danilov et al., is known from the early to middle Campanian aged Bostobe Formation of Kazakhstan.
WMyledaphus is a genus of Late Cretaceous cartilaginous fish whose fossils are known from Canada, the Midwest of the United States, Olmos Formation of the Difunta Group of Mexico, and the Beshtyubin and Bissekty Formations of Uzbekistan. It was a freshwater guitarfish that probably reached a length of 3 feet (91 cm), and had teeth adapted for a durophagous diet of animals such as clams. Most taxonomic authories place the genus in the Rhinobatidae, with a few placing it with prehistoric sharks (Anacoracidae), although the latter may be incorrect. Two species are known: Myledaphus bipartitus, the type species, and Myledaphus araucanus, named in 2019.
WPlagiostoma is a genus of fossil saltwater clams, marine bivalve mollusks in the family Limidae, the file clams.
WSazavis was an enantiornithine bird from the Late Cretaceous. It might have been related to Alexornis and Kizylkumavis and lived in what is now the Kyzyl Kum of Uzbekistan.
WScapanorhynchus is an extinct genus of shark that lived from the early Cretaceous until possibly the Miocene if S. subulatus is a mitsukurinid and not a sand shark. Their extreme similarities to the living goblin shark, Mitsukurina owstoni, lead some experts to consider reclassifying it as Scapanorhynchus owstoni. However, most shark specialists regard the goblin shark to be distinct enough from its prehistoric relatives to merit placement in its own genus.
WTimurlengia is an extinct genus of tyrannosauroid theropod dinosaur found in Uzbekistan, in the Bissekty Formation in the Kyzylkum Desert, hailing from the Turonian age of the early Late Cretaceous. The type species is Timurlengia euotica.
WTuranoceratops is a genus of herbivorous ceratopsian dinosaur from the late Cretaceous Bissekty Formation of Uzbekistan. The fossils dated from the mid-late Turonian stage, roughly 90 million years ago. The skull bore a pair of long brow horns like those seen in the Ceratopsidae, although Turanoceratops appears to have been transitional between earlier ceratopsians and ceratopsids, and not a ceratopsid itself.
WXylophaga is a genus of bivalves in the family Pholadidae.