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Ektatotricha
''Ektatotricha'' is an extinct, monotypic, genus of ant-like stone beetle in the family Staphylinidae containing the single species ''Ektatotricha paradoxa''.
The genus is known from a total of 15 specimens in amber from amber deposits near Tanai Village northwest of Myitkyina in the Kachin region of Myanmar. Burmese amber has been radiometrically dated using U-Pb isotopes, yielding an age of approximately 99 million years old, close to the Aptian – Cenomanian boundary. The holotype, a single, complete adult with specimen number "AMNH Bu-1464", and six of the paratypes are now deposited in the American Museum of Natural History. Four more of the paratypes are deposited in the University of Kansas Natural History Museum collections in Lawrence, Kansas, USA. The remaining two paratype specimens are currently in a private collection, but are to be deposited in the Field Museum of Natural History, Chicago. In addition to the holotype and 12 paratypes, two other American Museum of Natural History specimens were examined as part of the study; however, they were not designated as type material.〔
==Background==
The known ''Ektatotricha'' specimens were first studied by Drs Stylianos Chatzimanolis of the University of Tennessee, Michael Engel of the University of Kansas, and Alfred Newton of the Field Museum.〔 Chatzimanolis, Engel and Newton published the 2010 type description for ''E. paradoxa'' in the journal ''Cretaceous Research'', Volume 31.
The genus name is a feminine combination of the Greek ''ektatos'', meaning "extended", which refers to the visible fifth and sixth abdominal sterna, and ''tricha'' meaning "hair". The species name ''paradoxa'' is from the Greek ''paradoxon'', meaning "riddle".〔
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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