We've described a new theropod dinosaur species, we called it Pendraig milnerae.

我们已经描述了一种新兽脚亚目恐龙，我们命名它为 Pendraig milnerae。

He said, " The diversity of theropod dinosaurs by the end of the Cretaceous is totally amazing."

“到白垩纪末，兽脚亚目恐龙的多样性令人惊叹。”

But even for these early theropod dinosaurs, the one we've now discovered is actually very, very small.

但即使是这些早期的兽脚亚目恐龙，就是我们现在发现的这种恐龙，真的非常非常小。

Unfortunately, for Majungasaurus and most theropod dinosaurs, we don't have a lot of specimens to work with.

很遗憾的是对于玛君龙和多数兽脚类恐龙来说我们都没有很多标本。

And it's actually a very interesting animal, because it's the oldest known theropod dinosaur, so meat-eating dinosaur, from the UK.

它实际上是一种非常有趣的动物，因为它是已知最古老的兽脚亚目恐龙，也就是食肉恐龙，来自英国。

Paleontologists believe it belongs to a toothless theropod dinosaur, or oviraptorosaur, dating back 72 to 66 million years, within the Cretaceous Period.

古生物学家认为它属于一种无牙兽脚类恐龙，或称卵龙，可以追溯到7200万至6600万年的白垩纪时期。

And one of the problems of the teeth though, is they certainly are not as strong as other teeth in theropod dinosaurs laterally.

但是这些牙齿的问题之一是，横向上它们肯定没有其它兽脚亚目恐龙的结实。

Coelophysis was a small early theropod dinosaur.

腔骨龙是一种小型的早期兽脚类恐龙。

.. birds, the last surviving saurischian theropod dinosaurs.

..鸟类，最后幸存的蜥臀目兽脚亚目 恐龙。

So, Ostrom's discovery revived the theory that birds evolved from small theropod dinosaurs.

因此，奥斯特罗姆的发现复活了鸟类从小型兽脚类恐龙进化而来的理论。

So, Ostrom’s discovery revived the theory that birds evolved from small theropod dinosaurs.

因此，奥斯特罗姆的发现重振 了鸟类从小型兽脚亚目恐龙进化而来的理论。

All Theropod dinosaurs walked on their hind legs.

所有的兽脚亚目恐龙都是用后腿行走。

Although lots of theropod dinosaurs are known to have feathers.

尽管已知许多兽脚亚目恐龙都有羽毛。

Birds, the only surviving lineage of theropod dinosaurs, continue to thrive in almost every habitat on Earth.

鸟类是兽脚类恐龙唯一幸存的谱系，在地球上几乎每个栖息地都继续繁衍生息。

Characteristic theropod dinosaurs of this time include predators like Allosaurus, and the nose horn Ceratosaurus.

这一时期的特征性兽脚类恐龙包括食肉动物异特龙和鼻角角鼻龙。

And had a long bony tail, like a theropod dinosaur.

并且有一条长长的骨质尾巴，就像兽脚亚目恐龙。

What was this theropod dinosaur doing, when it made tracks that looked like this?

当这只兽脚类恐龙留下看起来像这样的足迹时，它在做什么？

Based on other fossils, we know that theropod dinosaurs are sometimes found in groups, something we'll come back to shortly.

根据其他化石，我们知道兽脚亚目恐龙有时成群出现，我们稍后会回过头来讨论。

Their theropod dinosaur ancestors had teeth, but all modern birds have beaks, despite their range of diets from carnivorous to herbivorous.

他们的兽脚类恐龙祖先有牙齿，但所有现代鸟类都有喙， 尽管它们的饮食范围从肉食性到草食性。

So far, paleontologists have been able to figure out the feather colors of a few species of theropod dinosaurs.

到目前为止，古生物学家已经能够弄清楚几种兽脚亚目恐龙的羽毛颜色。