The suggested"type species","Yibinosaurus zhoui", has not been formally described yet, but the formal publication is forthcoming, from Chinese paleontologist Ouyang Hui.
The two most distinguished American palaeontologists of modern times, Stephen Jay Gould and Niles Eldredge, both demonstrated 30 years ago that this is not true.
Natural History Museum of Los Angeles paleontologist Luis Chiappe agrees, noting that Aurornis is close to bird ancestry but may not actually fall within the actual bird group defined by the last common ancestor of Archaeopteryx and modern birds.
Michael Benton, a paleobiologist at the University of Bristol in the United Kingdom, adds that the fossils- which the discovery team has assigned to a new species called Eodromaeus murphi- are“complete enough to add substantially to our knowledge” of early dinosaur evolution.
In this week's issue of Science, Harvard University vertebrate paleontologist Stephanie Pierce and postdoc Katrina Jones report an investigation of fossils from the dawn of mammals that shows how evolution built our versatile spine.
But Luis Chiappe, a paleontologist at the Natural History Museum of Los Angeles County in California, says that Aurornis must fly through at least one important hoop before it can claim to be the first bird: Its authenticity must be proved.
Radiometric dating verified that the relative time scale determined by stratigraphers and paleontologists Figure 1 is absolutely correct, a result that could only have been obtained if both the relative time scale and radiometric dating methods were correct.
Both the journal and the paleontologist exist, but the magazine did not publish the article, and only the standard finds of petrified footprints are mentioned in connection with the paleontologist MacDonald and New Mexico.
In 1998, Cambridge University paleobiologist Simon Conway Morris(who is featured in the film“Darwin's Dilemma”) wrote,“Apart from the few Ediacaran survivors… there seems to be a sharp demarcation between the strange world of Ediacaran life and the relatively familiar Cambrian fossils”Crucible of Creation.
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