Pterosaurs to Birds

This site presents the idea that birds developed from flying pterosaurs. This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs.

Tuesday, November 20, 2012

Early archosaur hypothesis

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Here is some background on the idea that an early archosaur (eg. Longisquama, ) could be the ancestor of birds. The pterosaur to bird theo...

Monday, November 19, 2012

The origin of pterosaurs (2)

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From David Peters: http://www.reptileevolution.com/cosesaurus.htm Click to enlarge: http://en.wikipedia.org/wiki/Cosesaurus Cosesa...

Sunday, November 18, 2012

The origin of pterosaurs (1)

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To this point I have not posted about the origin of pterosaurs. I will do that now in a series of posts. I will work on the basic idea tha...

Saturday, November 10, 2012

More on Feathers

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Here is a bit more about feathers: See these earlier posts for more details about feathers: http://pterosaurnet.blogspot.ca/2011/10/bird...

Friday, November 9, 2012

Pterosaur Launch

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http://www.livescience.com/24636-giant-pterosaurs-in-flight.html CHARLOTTE, N.C. — It's a bird … It's a plane … It's a plane...

Wednesday, November 7, 2012

Walking Pterosaurs

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A question occurred to me concerning pterosaurs walking. They could be walking either with their arms held off the ground or with their han...

2 comments:

Saturday, October 27, 2012

Ornithomimosaurs

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http://www.sciencemag.org/content/338/6106/510.full "FEATHERED NON-AVIAN DINOSAURS FROM NORTH AMERICA PROVIDE INSIGHT INTO WING ORIG...

Saturday, April 7, 2012

Yutyrannus - Not Feathers

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http://blogs.scientificamerican.com/tetrapod-zoology/2012/04/04/giant-feathered-tyrannosaurs/ "As usual, the main gee-whiz points abo...

11 comments:

Thursday, April 5, 2012

Another claim of a "feathered dinosaur"

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http://www.guardian.co.uk/science/2012/apr/04/giant-feathered-dinosaur-china-big-fly The discovery of the largest known feathered dinosaur...

4 comments:

Saturday, February 25, 2012

Pterosaur and Bird Similarities (Redux)

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In a very early post I quoted a passage of basic info about pterosaurs which indicates that there is a great deal of similarity between pte...

13 comments:

Thursday, February 23, 2012

Thursday, February 16, 2012

Pterosaur brachiopatagium to bird postpatagium

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Lets look at the brachiopatagium of the pterosaur and see how it changed in the development to bird. http://books.google.ca/books?id...

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