Ichthyornis

Relative size of two I. dispar specimens: YPM 1742, blue, and YPM 1450, green, compared with a human. Both specimens were adult, but YPM 1450 is approximately one million years older.

Skeletal restoration based on the holotype of I. dispar

Ichthyornis (meaning "fish bird", after its fish-like vertebrae) was a genus of toothed seabird-like ornithuran from the late Cretaceous period of North America. Its fossil remains are known from the chalks of Alberta, Alabama, Kansas, New Mexico, Saskatchewan, and Texas, in strata that were laid down in the Western Interior Seaway during the Turonian through Campanian ages, about 95-83.5 million years ago. Ichthyornis is a common component of the Niobrara Formation fauna, and numerous specimens have been found.

单词	Ichthyornithidae
释义	Ichthyornithidae 英汉-汉英词典鱼鸟科词组 \| 习惯用语您要查找的是不是： ichthyologist n. 鱼类学者,鱼类研究者 lightheartedness n. 自由自在；无忧无虑 ornithological adj. 鸟类学的网络短语: Ichthyornithidae 鱼鸟科英语百科 Ichthyornis Ichthyornis (meaning "fish bird", after its fish-like vertebrae) was a genus of toothed seabird-like ornithuran from the late Cretaceous period of North America. Its fossil remains are known from the chalks of Alberta, Alabama, Kansas, New Mexico, Saskatchewan, and Texas, in strata that were laid down in the Western Interior Seaway during the Turonian through Campanian ages, about 95-83.5 million years ago. Ichthyornis is a common component of the Niobrara Formation fauna, and numerous specimens have been found.
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Ichthyornithidae

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网络短语:

Ichthyornis