Pterosaurs to Birds: Pterosaur wing to primitive bird wing

The transition from pterosaur wing to primitive bird wing is not as difficult as one might think.

See:
http://pterosaurnet.blogspot.ca/2015/07/primitive-birds-flying.html
http://pterosaurnet.blogspot.ca/2010/05/pycnofibres-feathers.html
http://pterosaurnet.blogspot.ca/2015/07/fingers-quick-summary.html
http://pterosaurnet.blogspot.ca/2014/01/helpful-background.html
http://pterosaurnet.blogspot.ca/2014/01/the-development-of-wing-feathers.html

Here is a summary of the basic ideas of this site:

Birds developed in a lineage from short bony tailed pterosaurs to short bony tailed scansoriopterygids that developed into basal pygostylia that developed into modern birds. A side lineage earlier developed from the long tailed pterosaurs to long bony tailed scansoriopterygids. That lineage went extinct. The category called coelurosaur dinosaurs includes only actual dinosaurs (eg. tyrannosaurs). It does not include birds. The fossil record supports the pterosaur-to-bird theory. The fossil record does not support the dinosaur-to-bird theory.

Pterosaurs to Birds

Sunday, January 3, 2016

Pterosaur wing to primitive bird wing

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