What is the Evolutionary History of Birds?

Ichthyornis is an extinct bird that lives in the Cretaceous North America. Their fossils can be found in Alberta, Canada, Saskatchewan, Alabama, Kansas, New Mexico, and Texas was found. The fish bird is a controversial fossil bird. Fish and bird jaws have teeth growing. Some scientists used to classify it as a reptile-like dragon. Later, the size and habits of birds and fish are very similar to modern seagulls. The upper and lower jaws have tooth spine bones. Wings, wishbone, and sternum all develop, with biconcave articular surfaces and coccygeal vertebrae ^[1] .

Ichthyornis is an extinct species

English name: Ichthyornis	Head: Total Jaw Head
World: animal world	Order: Fisheye
Door: Chord animal door	Section: Piranidae
Submenus: vertebrate submenus	Genus: Fish and Bird
Tsuna: Torii	Species: Fish and Bird

In 1872,

Fish and birds lived 67 million years ago. They were small individuals, had strong wings, and had high flying skills. It has a long mouth and teeth in its mouth. It often flies quickly over the ocean and hunts fish.

Fish and bird habits are very similar to modern seagulls, with teeth on its upper and lower jaws. The spine is primitive, with wings, wishbone and sternum all developed, with biconcave articular surface and coccygeal bone ^[3]

Source: Picture "Fish and Bird Recovery Figure 1" Source: ^[4] ; Picture "Fish and Bird Recovery Figure 2" Source :; Picture "Fish and Bird Recovery Figure 3" Source :; Picture "Fish and Bird Recovery Figure 1" Source: Fish and Bird Skeleton Recovery Picture 2 "Source: ^[5] ; Picture" Fish and Bird Fossil "Source: ^[6] , Copyright Statement: Copyright © 2003-2012 by Mike Everhart.

Fish and birds (7 photos)