It is believed to be a hadrosaur, although the Missouri remains were first thought to belong to a small sauropod ("Neosaurus", renamed Parrosaurus).
虽然在密苏里州发现最初被认为属于细小目,但估计牠属于鸭嘴龙超科。
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But this all changed when Bruno, another hadrosaur of the same species was discovered.
但相同种的另一只鸭嘴恐被发掘后,这一切都改变了。
Take for example, the footprints of hadrosaurs.
以鸭嘴的足迹为例。
Back in 1994, in Trieste, a municipality in North Eastern Italy, scientists discovered Antonio - a small hadrosaur, or duck-billed dinosaur.
回到1994年,在意大利北部城市的里雅斯特,科学家们发现了“安”——一只小型鸭嘴恐。
That was when paleontologists studied the trackways of hadrosaurs.
那是古生学家研究鸭嘴足迹的时候。
Triceratops and triceratops and the hadrosaur Corythosaurus are the two animals that have a dental battery.
和以及鸭嘴冠是两种拥有牙科电池的动。
Has described the differences in scale patterns between two closely related species of hadrosaurs.
描述了两种密切相关的鸭嘴种之间的鳞片模式差异。
The hadrosaur Edmontosaurus got dramatically larger with age and so did Camarasaurus, an herbivore that lived in the Jurassic Period.
随着年龄的增长, 鸭嘴埃德蒙顿变得越来越大,生活在侏罗纪时期的食草动圆顶也是如此。
I have here one-half of the lower jaw of a hadrosaur.
我这里有一只鸭嘴下颚的二分之一。
Three of the hadrosaurs have a crest, but one doesn't.
只鸭嘴有纹章,但一只没有。
Here, we have a complete hadrosaur tooth.
在这里,我们有一颗完整的鸭嘴牙齿。
But in a marathon, the slower, but steadier hadrosaur would win the race.
但在马拉松比赛中,速度较慢但更稳定的鸭嘴将赢得比赛。
If you remember, I mentioned earlier, that the old view of hadrosaurs had them standing almost upright, on their hind limbs.
如果你还记得的话,我之前提到过,鸭嘴的旧观点认为它们几乎直立,用后肢站立。
This is a cross section of a hadrosaur jaw.
这是鸭嘴下颚的横截面。
The ankylosaur, euplocephalus, ceratopsian, triceratops, and all of the hadrosaurs have a predentary bone.
甲、真头、、和所有的鸭嘴都有一块掠食骨。
The Iguanodon had a characteristic spiky thumb whereas the hadrosaurs basically had a hand that was encased in a mitten of skin.
禽有一个特有的尖刺拇指,而鸭嘴基本上有一只手被包裹在皮肤连指手套中。
Hadrosaurs were plant-eating dinosaurs that had to grind up tough plants rather than soft meat.
鸭嘴是一种以植为食的恐,它们必须磨碎坚硬的植而不是软肉。
So, in a sprint, a tyrannosaur would definitely outpace a hadrosaur.
因此,在短跑中,霸王肯定会超过鸭嘴。
Although hadrosaurs and ceratopsians both have dental batteries for grinding up plants, they were doing similar things in slightly different ways.
尽管鸭嘴和类都有用来磨碎植的牙科电池,但它们以略有不同的方式做着类似的事情。
But in all three skulls, the crest is formed from the same bones and the crest is hollow, which is characteristics of lambeosaur and hadrosaurs.
但在所有个头骨中,嵴是由相同的骨头形成的,而且嵴是空心的,这是鸭嘴和鸭嘴的特征。
Let's take a moment to compare the jaws of mammalian herbivores with the hadrosaur jaw.
让我们花点时间比较一下食草哺乳动的下颚与鸭嘴的下颚。
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