Madygen-Formation

The Madygen lineup (also Madygen Svita ) denotes a lithostratigraphic unit, that is a sequence of sedimentary rocks, the formation of which is on the environmental conditions here in the context of time, space and. The sediments of the Madygen lineup came during the middle or late Triassic in a lake or several lakes and on an adjacent floodplain to deposit and are now open in several separate areas in southwestern Kyrgyzstan.

History of discovery and exploration

The Madygen formation was first described by Kochnev (1934 ) defined as an own rock unit and named after the nearby village in Ausstrichgebiet Madygen. While most editors assumed a temporal Triassic age, had Sixtel (1960 ) on the basis of plant fossils from the Permian sequence an age. Dobruskina (1970, 1995 ), however, interpreted the flora as a medium to spättriassisch ( approximately 230-220 million years old ), which corresponds to the presumed evolutionary level of the insect fauna (see Shcherbakov 2008).

Fossil deposit of fossil insects

Since the study by paleontologists Moscow in the 1960s under the leadership of Alexander Sharov Madygen became known as fossil site for insects whose wings and body outlines are preserved fossil. Some wings show a color pattern that apparently reflecting the original color scheme. The oldest evidence of Hymenoptera are from the Madygen formation that has also produced some of the oldest fossils Fly ( Shcherbakov 2008).