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.

Friday, March 17, 2017

Support indices do not support the dino to bird theory

This is a summary and continuation of the material of the Jan 17 post . It is widely believed that the dinosaur to bird theory is well sup...

Tuesday, February 7, 2017

Ontogeny and Phylogeny

Let's step back a bit and look at ontogeny (development) and phylogeny (evolution). What are the different ways researchers have tried ...

Tuesday, January 17, 2017

Support Indices

The nodes on a cladogram are statistically evaluated by calculating support indices (bootstrap/jackknife, Bremer, GC). It is significan...

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