This site presents the idea that birds developed from pterosaurs.
This is a credible alternative to the current, mainstream idea that birds developed from land-based dinosaurs.
Saturday, December 4, 2010
Filling in the picture (1)
To repeat an important point, consider the time-based cladogram (above) that we saw earlier
Note that the group labeled "Modern birds" at the bottom right should say "Some modern birds" since modern bird taxa developed from the various taxa on the chart, such as Enantiornithes etc.