Friday, June 26, 2015

Primitive birds - Quick summary

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There were pennaceous-feathered, long-bony-tailed primitive birds. The most basal were flying (eg. scansoriopterygids, tetrapterygids ). ...
Monday, June 22, 2015

Oviraptor Propatagium

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More evidence that oviraptors were secondarily flightless and not transitional between dinosaurs and Paraves. https://www.google.ca/url?s...
Friday, June 5, 2015

Dinosaurs are not similar to primitive birds

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The following study shows that there were 51 synapomorphies  (unique defining characteristics) for Paraves (primitive birds). This means tha...
Saturday, May 2, 2015

Yi qi

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Yi qi study: https://www.researchgate.net/publication/275669107_A_bizarre_Jurassic_maniraptoran_theropod_with_preserved_evidence_of_membran...
5 comments:
Friday, January 9, 2015

Dino to bird - off on the wrong foot

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The revival of the dino to bird idea began with the work of John Ostrom in the 1970's. But Ostrom misinterpreted the flightless Deino...
1 comment:
Tuesday, January 6, 2015

Dinosaur to bird - implausible rates of change

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For the dino to bird theory to be correct, the evolutionary rates must have been up to four times faster. But that would mean that for the d...
5 comments:
Thursday, January 1, 2015

How did birds come into being?

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How did birds come into being? First we must distinguish between modern birds on the one hand, and their feathered ancestors called "b...
Wednesday, December 17, 2014

Pubis evolution

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http://pterosaurheresies.files.wordpress.com/2011/09/prepubes588.jpg Pterosaur pubis (in green) and prepubis (in yellow). The drawing of M...
Sunday, December 14, 2014

Feet

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Pterosaur feet are like basal paraves feet. Dinosaur feet are not like basal paraves feet. ivpp.cas.cn/qt/papers/201403/P0201403143935482...