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.

Saturday, April 7, 2012

Yutyrannus - Not Feathers

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

Thursday, April 5, 2012

Another claim of a "feathered dinosaur"

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

Saturday, February 25, 2012

Pterosaur and Bird Similarities (Redux)

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...

Thursday, February 23, 2012

Aviremigia

It is possible to be more precise about the point where pterosaurs developed into primitive birds. I have been saying (for simplicity) that ...

Overview of basic ideas

Note that I am just focussing now on the idea that basal pterosaurs evolved into basal Paraves and not on the following: The pterosaur to...

Categories (Updated)

See the updated version posted on Jan 15, 2013. For ease of reference, here is the list of links to the updated categories I have analyzed...

Thursday, February 16, 2012

Pterosaur brachiopatagium to bird postpatagium

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

Friday, February 10, 2012

* No antecedent structures in dino to bird theory

http://prumlab.yale.edu/sites/default/files/prum_n_brush_2002.pdf Feathers, however, are hierarchically complex assemblages of numerous e...

Saturday, February 4, 2012

* Dinosaurs did not have wing-like arms

I could hardly have put it better than the following: http://scienceblogs.com/tetrapodzool..._they_dont.php Quote: The fact that long ...

* Hypothetical Creatures

http://scienceblogs.com/tetrapodzoology/2009/06/birds_come_first_no_they_dont.php But, ultimately, BCF is entirely unsatisfactory: we...

Thursday, February 2, 2012

* Paraves to modern bird

http://onlinelibrary.wiley.com/doi/10.1111/j.1420-9101.2012.02465.x/abstract;jsessionid=D85984F3042F8E00C550060394176368.d03t02?systemMessag...

Wednesday, January 25, 2012

* Dinosaurs did not have feathers

http://news.nationalgeographic.com/news/2006/03/0315_060315_dinosaur.html The fossil of a small, predatory dinosaur discovered in Germany ...

Friday, January 6, 2012

Taking a break from pterosaurs

Here is a study: http://www.sciencedaily.com/releases/2011/07/110718111421.htm The face of a frog: Time-lapse video reveals never-before...

Wednesday, December 28, 2011

Flamingo Lineage (2)

Here is an enhancement to the possible flamingo lineage: Pterosaur (Ctenochasmatidae ) Pterodaustro ---> Presbyornithid subgroup--...

Friday, December 23, 2011

Summary

Here is a summary of the basic ideas of this site. This is a work in progress.: Birds developed in a lineage from proto-pterosaurs (e...

Monday, December 19, 2011

The Flamingo Lineage

Here is an introduction to the flamingo lineage: A preliminary, possible lineage: Pterosaur (Ctenochasmatidae) Pterodaustro --> Pri...

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