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Liaoningornis
Click here for more Liaoningornis Pictures
| Scientific Classification |
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Order |
Liaoningornithiformes |
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Family |
Liaoningornithidae |
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Liaoningornis is a bird that lived in
China
during the early
Cretaceous period.
At the time of writing, only a single fossil
of the animal has been found. The animal was about the size of a sparrow and
seems to be surprisingly advanced for a bird of this period.
By comparison, Confuciusornis, another bird found in the same
deposits (and therefore contemporaneous with Liaoningornis), has many relative primitive features,
similar to those of Archaeopteryx.
Furthermore, there has been some controversy about dating Liaoningornis.
Some scientists have argued that Liaoningornis is only slightly younger than
Archaeopteryx,
and if this is correct, it would make Liaoningornis even more surprising. Indeed,
it has even been argued that relatively advanced early birds such as Liaoningornis
might be a parallel lineage to the more primitive early birds such as
Archaeopteryx and Confuciusornis,
and may perhaps even indicate that birds evolved earlier than most scientists currently believe.

Liaoningornis was a small bird that lived during the Cretaceous period, possibly between 130 and 125 million years ago

Related Information & Resources
See Also

Liaoningornis Books Here are some books from Amazon.com:
Disclosure: Products details and descriptions provided by Amazon.com. Our company may receive a payment if you purchase products from them after following a link from this website.
University of California Press Hardcover (576 pages)
 | List Price: $100.00* Lowest New Price: $41.00* Lowest Used Price: $32.00* Usually ships in 24 hours* *(As of 20:29 Pacific 17 May 2012 More Info)
Click Here | Product Description:
Our knowledge of the origin and early evolution of birds has exploded in the past ten to fifteen years. In the 1990s alone, scientists became aware of approximately three times more species of early birds than were previously known, marking the first 85 million years of avian development as a period of remarkable species diversity. Assembling work by an international group of renowned scientists, Mesozoic Birds: Above the Heads of Dinosaurs is the most authoritative and up-to-date source on early avian evolution currently available. This unique resource provides a comprehensive examination of the known fossil record and is also an unparalleled guide to the fast-paced developments in current research. Mesozoic Birds: Above the Heads of Dinosaurs covers a wide range of topics, including discussions of avian origins, the fossil record of feathers and footprints, bone histology, and locomotor evolution. Controversial taxa such as Protoavis, Caudipteryx, and Mononykus receive special treatment. But the heart of the volume presents the anatomy, relationships, and paleobiology of the undisputed Mesozoic aviary. Some of the book's most exciting features are the new definitive descriptions and illustrations of taxa that previously have received only brief notice, such as the alvarezsaurid Shuvuuia; the enantiornithines Sinornis; Eoalulavis, Vorona, and Patagopteryx; and the hesperornithiform Enaliornis. The origin of birds and their relationship to dinosaurs continue to be hotly debated among paleontologists, ornithologists, and evolutionary biologists. This cutting-edge reference will become an essential resource for those interested in this debate and in the many other fascinating topics relating to the evolution of the earliest known birds. |
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