theropod

Life in the late theropod Triassic cretaceous.

兽脚类生活在晚三叠纪至白垩纪。

The strongest support for this theory of theropod gigantism comes from what is known about the rise of T. rex, however.

然而，这个兽足类巨大化理论最有力的支持，却来自对霸王龙身世的了解。

An example of macroevolution is the appearance of feathers during the evolution of birds from theropod dinosaurs.

宏进化的一个例子是鸟类在从兽角亚目的恐龙进化期间羽毛的出现。

Now we must acknowledge that birds are a group of the feathered theropod dinosaurs that evolved the capacity of powered flight.

而现在我们则必须承认，所谓的鸟类是指一群有羽毛、演化出飞翔能力的兽足类恐龙。

A member of the Dromaeosauridae of dinosaurs, it was a bird-like theropod dinosaur, which flourished during the Cretaceous Period.

它属于驰龙科一员，是一种类似鸟类的兽脚亚目食肉恐龙，在白垩纪繁盛一时。

Paleontologists believe the meat-eating theropod dinosaur was light, agile and very fleet of foot, with three large slashing claws on each hand.

古生物学家认为这两种食肉类恐龙轻巧、灵活、速度快，而且每个蹄子有三个巨大锋利的爪子。

And why would natural selection have favored the development of little protowings in a theropod equipped with heavily muscled legs for running across the ground?

另一方面，兽足类恐龙双腿强而有力，在地面上奔驰毫不费力，天择怎麽会看上牠们的弱小上肢，将它们改造成原始的翅膀？

Some skeptics have claimed that Caudipteryx was merely an early flightless bird, but many phylogenetic analyses place it among the oviraptoran theropod dinosaurs.

有部份怀疑者声称，尾羽龙只是早期不飞的鸟，但许多系谱分析都将之归类为窃蛋龙类群的兽足类恐龙。

Sinosauropteryx, Sinornithosaurus and some other nonavian theropod specimens show open tufted structures that lack a rachis and are strikingly congruent with stage 2 of the model.

而中华龙鸟、中国鸟龙与其他非鸟类兽足类标本的羽毛都有开展的簇生结构、缺乏羽轴，与模型中的阶段2吻合，再度令人惊奇。

For gigantic theropod species to succeed, the researchers argue, they would have needed continent-size landmasses to sustain populations large enough to avoid extinction.

研究者认为，巨型兽足类物种若要能存续，维持族群不致灭绝所需的空间，应该有整个洲陆那麽大。

Suggestions that they were the direct descendants of theropod dinosaurs (a group of bipedal meat-eaters that include Allosaurus, Velociraptor and Tyrannosaurus) caused quite a flap.

有人说它是兽脚恐龙的后代（兽脚恐龙是一群食肉的两足恐龙，其中包括异龙、迅猛龙与暴龙），这引起了学界很大的注意。

The discovery of feathered dinosaurs and early birds from the Lower Cretaceous of Liaoning, N.E.China have convinced most students that birds did evolve from coelurosaurian theropod dinosaurs.

在中国东北辽宁发现的早期白垩纪带羽毛的恐龙和早期鸟类的化石，已让大多数学者相信鸟类是从兽脚亚目蜥尾类恐龙演化而来。

We now know that feathers first appeared in a group of theropod dinosaurs and diversified into essentially modern structural variety within other lineages of theropods before the origin of birds.

现在我们知道，最早的羽毛出现在一群兽足类恐龙身上，并在兽足类的其他演化支系身上分化出相当现代化的各种构造，比鸟的起源还早。

The Discovery of Theropod Dinosaur Footprints from the Middle Jurassic Yima Formation of Yima County, Henan Province

河南省义马县中侏罗统义马组兽脚类恐龙足印化石的发现及其意义

Chen P J.Dong, Z. M.Zhen, S. N An Exceptionally Well-Preserved Theropod Dinosaur from the Yixian Formation of China 1998

陈丕基.王启飞.张海春.曹美珍.黎文本.吴舜卿.沈炎彬论义县组尖山沟层[期刊论文]-中国地质大学学报（英文版）2004(10

, de Valais, S., Vickers-Rich, P., &Rich, T.H. 2005.A large Cretaceous theropod from Patagonia, Argentina, and the evolution of carcharodontosaurids.

而在下白垩纪的肉食性兽脚亚目恐龙在南部各大陆都已被阿贝力龙科所取代。

theropod

n. 兽脚亚目食肉恐龙(前肢小, 主要用后肢行走) adj. 兽脚亚目的