The evolution of feathers. Watch the time line.
|September 25, 2007||Posted by idnet.com.au under Intelligent Design|
From “Evo-Devo of feathers and scales: building complex epithelial appendages”
“Archeopteryx existed ~145 million years ago and appears relatively advanced: it has different types of feathers over the body but still has teeth, claws in the wing, and a feathered tail. The flight feathers in the wing are asymmetric, suggesting that it could fly.
Confuciusornis ~140 mya had both down and flight feathers. The well-developed asymmetric flight feathers and toothless beak suggests that it flew well. The fossils even indicate the establishment of sexual dimorphism in the tail feathers.
Protarchaeopteryx ~120-136 mya also had bilaterally symmetric pennaceous feathers, but still lacked the asymmetric vane required for flying.
Caudipteryx ~127mya had evolved different feather types over the body. In both the wing and tail, they had spectacular symmetric pennaceous feathers, probably used for display and also had teeth.
Sinosauropteryx ~120 mya has ‘fuzz fibers’ surrounding the body. These filamentous ‘protofeathers’ appear to be rather homogenous over the body and appear to be down-like.
One may wonder why the more primitive feathers seem to appear later than complex ones in the fossil record. Well preserved fossils, particularly those of the integument, are very rare and the absence of such examples does not mean that they did not exist.”
This is a clear example where the predicted fossil evidence is actually reversed. Protarchaeopteryx arose 9my after Archeopteryx. Protofeathers arose 25my after flight feathers. This is like finding a fossil rabbit in pre cambrian strata. The conclusion is of course, Darwinian evolution is obviously true.