''Aidachar'' (named for Aydahar, a mythical Kazakh dragon) is an

extinct Extinction is the termination of an organism by the death of its Endling, last member. A taxon may become Functional extinction, functionally extinct before the death of its last member if it loses the capacity to Reproduction, reproduce and ...

genus Genus (; : genera ) is a taxonomic rank above species and below family (taxonomy), family as used in the biological classification of extant taxon, living and fossil organisms as well as Virus classification#ICTV classification, viruses. In bino ...

of marine ichthyodectiform

ray-finned fish Actinopterygii (; ), members of which are known as ray-finned fish or actinopterygians, is a class of bony fish that comprise over 50% of living vertebrate species. They are so called because of their lightly built fins made of webbings of sk ...

from the

Late Cretaceous The Late Cretaceous (100.5–66 Ma) is the more recent of two epochs into which the Cretaceous Period is divided in the geologic time scale. Rock strata from this epoch form the Upper Cretaceous Series. The Cretaceous is named after ''cre ...

(

Cenomanian The Cenomanian is, in the International Commission on Stratigraphy's (ICS) geological timescale, the oldest or earliest age (geology), age of the Late Cretaceous epoch (geology), Epoch or the lowest stage (stratigraphy), stage of the Upper Cretace ...

Turonian The Turonian is, in the International Commission on Stratigraphy, ICS' geologic timescale, the second age (geology), age in the Late Cretaceous epoch (geology), Epoch, or a stage (stratigraphy), stage in the Upper Cretaceous series (stratigraphy), ...

) of

Central Asia Central Asia is a region of Asia consisting of Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan. The countries as a group are also colloquially referred to as the "-stans" as all have names ending with the Persian language, Pers ...

and

North Africa North Africa (sometimes Northern Africa) is a region encompassing the northern portion of the African continent. There is no singularly accepted scope for the region. However, it is sometimes defined as stretching from the Atlantic shores of t ...

. The

type species In International_Code_of_Zoological_Nomenclature, zoological nomenclature, a type species (''species typica'') is the species name with which the name of a genus or subgenus is considered to be permanently taxonomically associated, i.e., the spe ...

is ''A. paludalis'', named by

Lev Nesov Lev or LEV may refer to: People and fictional characters *Lev (given name) *Lev (surname) Places *Lev, Azerbaijan, a village * Lev (crater), a tiny lunar crater Religion *an abbreviation for Leviticus, the third book of the Hebrew Bible and th ...

in 1981 from remains discovered in the

Kyzyl Kum The Kyzylkum Desert (, قِیزِیل‌قُوم; , قىزىلقۇم) is the 15th largest desert in the world. Its name means ''Red Sand'' in Turkic languages. It is located in Central Asia, in the land between the confluent rivers Amu Darya and ...

desert of

Uzbekistan , image_flag = Flag of Uzbekistan.svg , image_coat = Emblem of Uzbekistan.svg , symbol_type = Emblem of Uzbekistan, Emblem , national_anthem = "State Anthem of Uzbekistan, State Anthem of the Republ ...

. At first, he tentatively described the

fossil A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserve ...

material as the jaw fragments of a ctenochasmatid

pterosaur Pterosaurs are an extinct clade of flying reptiles in the order Pterosauria. They existed during most of the Mesozoic: from the Late Triassic to the end of the Cretaceous (228 million to 66 million years ago). Pterosaurs are the earli ...

(a flying reptile), but reinterpreted ''Aidachar'' as a fish in 1986. The second species, ''A. pankowskii'', is described from

Kem Kem Group The Kem Kem Group (commonly known as the Kem Kem beds) is a geological group (stratigraphy), group in the Kem Kem region of eastern Morocco, whose strata date back to the Cenomanian stage of the Late Cretaceous. Its strata are subdivided into two ...

Morocco Morocco, officially the Kingdom of Morocco, is a country in the Maghreb region of North Africa. It has coastlines on the Mediterranean Sea to the north and the Atlantic Ocean to the west, and has land borders with Algeria to Algeria–Morocc ...

and reclassified from the genus ''

Cladocyclus ''Cladocyclus'' (derived from the Ancient Greek, Greek κλάδος/kládos ("branch") and κύκλος/kýklos ("circle")) is an extinct genus of marine Ichthyodectiformes, ichthyodectiform ray-finned fish from the middle Cretaceous. It was a p ...

'', to which it is thought to be closely related.

References

External links

The Pterosaur Species List, 3rd Edition (pdf)
Compiled by Michael Hanson. Ichthyodectiformes Prehistoric ray-finned fish genera Late Cretaceous bony fish Turonian life Late Cretaceous fish of Asia Late Cretaceous fish of Africa Fossils of Uzbekistan Fossils of Morocco Bissekty Formation Fossil taxa described in 1981 {{Cretaceous-fish-stub