Muséum National d'Histoire Naturelle, Institut de Systématique, Evolution, Biodiversité, ISYEB , CNRS UMR 7205, UPMC EPHE, Paris , France.
Barberaz , France.
PeerJ. 2014 Sep 2;2:e510. doi: 10.7717/peerj.510. eCollection 2014.
The Late Kimmeridgian marine limestones of the area around Orbagnoux (Rhône, France) are well known for their fish fauna and terrestrial flora. Here we record the first insects and their activities (mines on leaves and trails in sediments) from these layers, including the oldest record of the gerromorphan bugs, as a new genus and species Gallomesovelia grioti, attributed to the most basal family Mesoveliidae and subfamily Madeoveliinae. These new fossils suggest the presence of a complex terrestrial palaeoecosystem on emerged lands near the lagoon where the limestones were deposited. The exquisite state of preservation of these fossils also suggests that these outcrops can potentially become an important Konservat-Lagerstätte for the Late Jurassic of Western Europe.
奥巴涅克斯（法国罗纳省）周边地区晚白垩纪的海洋石灰岩以其鱼类动物群和陆生植物群而闻名。在这里，我们记录了这些层位中的第一批昆虫及其活动（叶片上的虫道和沉积物中的痕迹），包括最古老的 gerromorphan 臭虫的记录，作为一个新属和种 Gallomesovelia grioti，归属于最基础的 Mesoveliidae 科和 Madeoveliinae 亚科。这些新化石表明，在石灰岩沉积的泻湖附近的出露陆地上存在一个复杂的陆地古生态系统。这些化石保存状态极佳，表明这些露头有可能成为西欧晚侏罗世的一个重要的化石保护区。
