Actually, cladistics would hold that Aves and Dinosaurs are descended from a common ancestor, but true dinosaurs are extinct. As a monophyletic taxon, Dinosaurs do not include Aves, but they are related.
In other words, Crocodilians, Dinosaurs, and Birds are all Archosaurs...but Birds are not dinosaurs.
I suppose however, that since cladistics is based largely on argument...the literature will support both positions.
Slashdot Mirror
Actually, cladistics would hold that Aves and Dinosaurs are descended from a common ancestor, but true dinosaurs are extinct. As a monophyletic taxon, Dinosaurs do not include Aves, but they are related.
In other words, Crocodilians, Dinosaurs, and Birds are all Archosaurs...but Birds are not dinosaurs.
I suppose however, that since cladistics is based largely on argument...the literature will support both positions.
Yup. Prader-Willi is paternal. Both are caused by microdeletions at 15q11.2