Late Jurassic dinosaurs from Asturias, Spain: Implications for the diversity and biogeography of European Late Jurassic dinosaur faunas

侏罗纪是我们了解恐龙进化的重要时期，因为大多数重要的谱系都起源于这一时期。最近的地理分析表明，晚侏罗世是白垩纪恐龙分布的决定性时期，欧洲可能是当时的一个重要“转盘”。迄今为止，欧洲恐龙动物群主要是从葡萄牙卢西塔尼亚盆地的发现以及法国，英国和德国的孤立事件中了解的。葡萄牙的动物群似乎与北美的莫里森组非常相似，而欧洲中部和北方的动物群似乎至少受到亚洲的影响。晚侏罗世的拉斯特雷组在西班牙北方的阿斯图里亚斯省出露出来，已经发现了一些恐龙的残骸。最近，在这个单位发现了两个关节恐龙遗骸，一个鸟臀目（可能是鸟脚亚目）和一个蜥臀目（可能是蜥脚亚目）。这些标本对增进我们对欧洲恐龙动物群的了解具有巨大的潜力，因此，它们的制备和科学研究是本提案的主题。

The Jurassic is an important time for our understanding of dinosaur evolution, as most important lineages originated and radiated during that period. A recent biogeographic analysis indicates that the Late Jurassic was decisive for dinosaur distribution in the Cretaceous, and that Europe might have been an important "turntable" at that time. European dinosaur faunas are so far mainly known from finds from the Lusitanian Basin in Portugal and isolated occurrences in France, England and Germany. The Portugese faunas seem to be very similar to that of the North American Morrison Formation, whereas there seems to be at least some Asian influence in the central and northern European faunas.The Late Jurassic Lastres Formation crops out in the northern Spanish province of Asturias and has already yielded fragmentary dinosaur remains. Recently, two articulated dinosaur remains were found in this unit, an ornithischian (probably ornithopod) and a saurischian (probably sauropodomorph). These specimens have a great potential to imporve our understanding of European dinosaur faunas, and their preparation and scientific study is thus the subject of this proposal.