Argentine Dinosaurs Undermine Evolutionary Timeline

 And God made the beast of the earth after his kind... 

Genesis 1:25

"Recent articles in Science indicate that the origin of dinosaurs is unknown, and that there are many questions about ‘early’ dinosaurs from the late Triassic. Michael Balter admits:

“But paleontologists are equally concerned with puzzling out how these mighty beasts got their start. Who were their ancestors? … Tracing the origins of the earliest dinosaurs has been a major challenge for paleontologists because there are no uncontested fossils from their earliest days on Earth.”

A new discovery in northwest Argentina, where other late Triassic dinosaurs have been found, suggests weaknesses in existing theories.
The new discovery is of a 1-m-long T. rex-like dinosaur named Eodromaeus murphi, which has added more confusion to the origin of dinosaurs.

Another dinosaur previously found in the area, Eoraptor, was considered one of the earliest theropods, but has now been named as the ancestor of the sauropods! This conclusion is not sitting well with a lot of evolutionists.
This field area is significant.
It contains the supposed representatives of all three major lines of dinosaurs: theropods, sauropods and ornithischians.
This new round of reclassification pushes the origin of dinosaurs back as far as the mid Triassic. Though no fossils of the ancestral dinosaur have been found, paleontologists believe it to have been bipedal. This would require the evolutionary sequence to move from quadruped reptiles to a biped dinosaur ancestor, and then back to the later quadruped dinosaurs. There is no explanation for such changes.
Paleontologists have also found other vertebrates, mainly reptiles, in the rocks of northwest Argentina. Dinosaurs represent only about 10% of the vertebrate fossils. Furthermore, the dinosaur fossils appear, disappear, and then reappear in successive stratigraphic layers. Paleontologists explain this by claiming that the dinosaurs did not outcompete the reptiles but only filled empty niches.

This follows the recent idea of cooperative adaptation rather than the old ‘survival of the fittest’ imagery of evolution.
Fossils in the late Triassic rocks of northwest Argentina are the ‘oldest’ remains yet found on Pangea. The dinosaurs became dominant at the Triassic/Jurassic boundary, and reptiles largely disappeared. This suggests that early dinosaur evolution was geographically restricted for about 15 million years, another problem for paleontologists. 

Q: Why did they not migrate sooner to other parts of Pangea?  

If nothing else, this demonstrates that parts of the fossil record remain undiscovered."
CMI