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Juravenator
''Juravenator'' is a genus of small (75 cm long) coelurosaurian theropod dinosaur, which lived in the area which would someday become the Jura mountains of Germany, about 151 or 152 million years ago. It is known from a single, juvenile specimen.
==Discovery and naming==
In the summer of 1998, the Jura-Museum Eichstätt at Eichstätt organised a paleontological expedition to the nearby chalk quarry of Schamhaupten. Near the end of the planned excavations, two volunteers, Klaus-Dieter Weiß and his brother Hans-Joachim Weiß, found a chalk plate in which clear vertebrate remains were visible. A first preparation uncovered the head of a small theropod. However, due to the vulnerability of the bones, removing the hard calcium silicate matrix was slow and expensive. To see whether it was worthwhile to proceed, a CT-scan of the fossil was made. This seemed to show that only the neck and a small part of the rump were still present and accordingly the preparation was discontinued. In 1999 the find was reported in the scientific literature by Günther Viohl. By 2001 the fossil had generated some publicity and was nicknamed ''Borsti'' in the German press, a name commonly given to bristle-haired dogs, on the assumption the creature was endowed with bristly protofeathers. In 2003, the new director of the museum, Martina Kölbl-Ebert, decided to finish the preparation. Preparator Pino Völkl then discovered, during seven hundred hours uncovering the remaining bones, that almost the entire skeleton was present.
In 2006 the type species ''Juravenator starki'' was named and described by Ursula Göhlich and Luis Chiappe. The generic name is derived from the Jurassic Bavarian Jura Mountains, and a Latin ''venator'', "hunter". The specific name honours the Stark family, owners of the quarry.〔
The holotype, JME Sch 200, was found in the ''Malm Epsilon 2'', a marl layer of the Painten Formation dating to the late Kimmeridgian, about 151 to 152 million years old. As the bones were accessed from below — the specimen having landed on its back on the seafloor〔 — and the plate was not split further, a counterslab is lacking. The fossil consists of an almost complete articulated skeleton with skull of a juvenile individual. Only the tail end is missing. In small areas impressions or remains of the soft parts are present. The fossil was considered the most complete specimen of a non-avian theropod ever found in Europe.〔
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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