Tiktaalik Roseae

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See Tiktaalik Roseae in Wikipedia, the free encyclopedia.

• Description from an article in Scientific American:

Like all fish, Tiktaalik possesses fins and scales. But it also has a number of distinctly un-piscine characteristics, including a neck, a flat, crocodilelike skull, and robust ribs. As such Tiktaalik neatly fills the gap between previously known tetrapodlike fish such as Panderichthys, which lived some 385 million years ago, and the earliest tetrapods, Ichthyostega and Acanthostega, which lived about 365 million years ago. "Tiktaalik blurs the boundary between fish and land animals," Shubin observes. "This animal is both fish and tetrapod; we jokingly call it a 'fishapod.'"

Contents 1 Fossil Details 2 External Links 3 See Also 4 Acknowledgements

Fossil Details

• Description : Tiktaalik roseae is a transitional fossil ("missing link") between fish and tetrapods.
• Age : Approximately 375 million years ago.
• Discovered : Neil Shubin of the University of Chicago and his colleagues found Tiktaalik on Ellesmere Island, some 600 miles from the North Pole,

Details	Skull front view	Skull rear view	Limb fin to shoulder
Limb shoulder to fin

External Links

• University of Chicago's Tiktaalik roseae page [1]
• New York Times announcment [2]
• Scientific American article [3]
• wikipedia article on tiktaalik [4]
• [Science Blog - Pharyngula]

See Also

• Creationist Claim: Transitional fossils are lacking
• Transitional Fossils

Acknowledgements

• Douq(Dmill96), tk

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