Two of the Vegaviidae lived in the late Cretaceous: Polarornis gregorii and Neogaeornis wetzeli.
两组化石都可追溯至7000至8000万年前的白垩纪晚期。
Both sets of fossils dateback 70 to 80 million years, in the late Cretaceous.
它们最近的共同祖先可能存在与白垩纪晚期,距今七千万年前。
So their last commonancestor may have been sometime in the late Cretaceous, 70ish million years ago.
火灾后从巴西国家博物馆找回的化石显示,与画中同类的飞行爬型动物也曾经在白垩纪晚期的南极天空中翱翔。
Fossils recovered from the fire-damaged Museu Nacional in Brazil show that flying reptiles from thissame group also soared over Antarctica in the late Cretaceous.
白垩纪晚期的另一个趋势是开花植物或被子植物的兴起。
Another trend in the later Cretaceous was the rise of flowering plants or angiosperms.
镰刀龙(Therizinosaurus)生活在白垩纪晚期(约7000万年前)。
Therizinosaurus lived in the late Cretaceous Period(about 70 million years ago).
新的发现填补了白垩纪晚期南极洲生态系统中人们所期盼的生态元素。
The new find complements oneexpected ecological element of the Antarctic ecosystem during the latest Cretaceous.”.
这两个样本来自白垩纪晚期(约9500万年前),或有助于阐明这些恐龙是如何抵达澳大利亚的。
The two specimens from the Late Cretaceous period(approximately 95 million years ago) may help to shed light on how these dinosaurs arrived in Australia.
白垩纪晚期,海洋继续拓宽,印度接近亚洲南缘。
By the Late Cretaceousthe oceans have widened, and India approaches the southern margin of Asia.
也就是说,江西在白垩纪晚期恐龙的种群至少有20余种。
It means that the province was once home toat least 20 dinosaur species in the late Cretaceous period.
希内汉说:“白垩纪晚期的火山活动引发了大约2度的逐步全球变暖事件,但并未造成大范围灭绝。
He said:“Volcanic activity in the late Cretaceous caused a gradual global warming event of about two degrees, but not mass extinction.
白垩纪的一种骨架,一种鸭嘴兽,从白垩纪晚期吃恐龙的植物;
A skeleton of a Saurolophus, a duckbilled, plant eating dinosaur from the late Cretaceous period;
这些碰巧是类似鸟的小恐龙,据说在白垩纪晚期生活过。
These happen to be small dinosaurs resembling a bird andare said to have lived during the Late Cretaceous period.
现代鸟类的羽毛远亲,绵羊龙生活在白垩纪晚期,至少6700万年前。
The feathered ancient relatives of modern birds,oviraptorosaurs lived in the Late Cretaceous period, at least 67 million years ago.
这些碰巧是类似鸟的小恐龙,据说在白垩纪晚期生活过。
These happen to be small dinosaur resembling a bird andare said to have lived during the Late Cretaceous period.
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