Sunday, November 30, 2014

Intramandibular joint

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PTEROSAURS http://dml.cmnh.org/2002Sep/msg00187.html The unusual intra-mandibular joint described above is found only in herrerasaurids...
3 comments:
Friday, November 21, 2014

Summary

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Here is a comparison of basal pterosaur, basal paraves and coelurosaur dinosaur. As we can see, basal paraves are like pterosaurs. Basal p...
21 comments:
Sunday, November 9, 2014

Shoulder Joint

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http://earth.geology.yale.edu/~ajs/1993/11.1993.09Jenkins.pdf Among living tetrapods, birds are unique in having completely separate...
4 comments:
Friday, October 31, 2014

Dino to bird claims

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What we see again and again is that there is no actual link between ground-based coelurosaur dinosaurs and arboreal paravians. They inhabit ...
Thursday, October 30, 2014

Exaptation

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In the dino to bird theory, there is a good deal of claimed exaptation. Abducted wrists, f eathers and enlarged brains  are claimed to have...
2 comments:
Wednesday, October 29, 2014

Not required to become terrestrial

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Here is an objection to the pterosaur to bird theory: To derive birds from pterosaurs would require  some pterosaur to give rise to terr...
Tuesday, October 28, 2014

Artist's Renderings

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Here are artist's renderings of the taxa we are interested in. They show that the pterosaur is much closer to basal paraves than the di...
Saturday, October 25, 2014

Aerodynamics

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Notice that the charts for basal Paraves and Rhamphorhynchus are very similar. This is what you would expect if basal Paraves descended fr...