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It was just a nice little conversation about troodont braincase morphology.
Evolution, bien sur.Vindex-
You win (I think). Are you argueing for or against evolution? and I actually pretend I know a bit about science.
Kris
Why is that? Magnanimity asked for a demonstration of a transitional fossil, and thus I provided one. This required a detailed look at the morphology if I was to take Magnanimityâs request seriously, and as I wished to, I provided a detailed look at the morphology of the troodonitd braincase.Actually, I did know that. But it was hard to take an arguement seriously about a âtroodontâ. I can hardly wait to read the installment about Confuciusornis sanctus!!
Kris
Is that pronounced Tro-o-dont? Also, I am not up to date on the literature. Are the Thecodonts still showing less evidence for bird origins than the Therapods?Why is that? Magnanimity asked for a demonstration of a transitional fossil, and thus I provided one. This required a detailed look at the morphology if I was to take Magnanimityâs request seriously, and as I wished to, I provided a detailed look at the morphology of the troodonitd braincase.
Vindex Urvogel
âThecodontiaâ is a paraphyletic hodgepodge of basal archosaurs that donât fit within Avesuchia (=Archosauria *sensu *Gauthier, 1986). The grade is defined by the same characters which delineate Archosauria itself (*non sensu *Gauthier, 1986) and thus when one says that birds are derived from âthecodontsâ all one is really saying is that they are derived from archosaurs, which was already agreed upon. The majority of the evidence strongly suggests that Aves is nested within Theropoda at some level. There are some interesting data which might dispute this conclusion, but it has yet to be systematically quantified or dealt with in any explicitly phylogenetic framework. Until that time, it is not easy to really examine it with respect to the theropod origin of birds. As for troodonts, yes, thatâs the way itâs pronouncedIs that pronounced Tro-o-dont? Also, I am not up to date on the literature. Are the Thecodonts still showing less evidence for bird origins than the Therapods?
talkorigins.org/faqs/faq-misconceptions.html#thermoTo Booger and the evolutionary THEORISTS:
Explain this: THE SECOND LAW OF THERMODYNAMICS, which basically means that natural processes always tend toward disorder and the simple will never produce the more complex. (Johnson, âThe Death of Evolutionâ, p.21-22.)
How can you honestly believe a theory which flies in the face of an established LAW that is indisputable?
âIf your theory is found to be against the Second Law of Thermodynamics I can give you no hope.â -Sir Arthur Eddington, Astronomer.
Vindex Urvogel said:âThecodontiaâ is a paraphyletic hodgepodge of basal archosaurs that donât fit within Avesuchia (=Archosauria *sensu *Gauthier, 1986). The grade is defined by the same characters which delineate Archosauria itself (*non sensu *Gauthier, 1986) and thus when one says that birds are derived from âthecodontsâ all one is really saying is that they are derived from archosaurs, which was already agreed upon. The majority of the evidence strongly suggests that Aves is nested within Theropoda at some level. There are some interesting data which might dispute this conclusion, but it has yet to be systematically quantified or dealt with in any explicitly phylogenetic framework. Until that time, it is not easy to really examine it with respect to the theropod origin of birds. As for troodonts, yes, thatâs the way itâs pronounced
Vindex Urvogel
In a way, however, I rather prefer Pakicetus. The auditory bulla is massive and formed exclusively of the ectotympanic, as in all other archaic whales. But at the same time modifications for directional hearing underwater and protection of the inner ear from water pressure as seen in advanced whales, are absent. E.g., the auditory bullae are not isolated by sinus systems as in modern whales, but rather are still attached to the squamosal, basioccipital, and paroccipital in Pakicetus. *Pakicetus *also displays a marked fossa for the tensor tympani, indicating that this animal retained a functional tympanic membrane, which is lost in modern whales. These data indicate that in addition to say, Troodon, or Ambulocetus, *Pakicetus *is an ideal transitional.Vindex << Magnanimity asked for a demonstration of a transitional fossil >>
I like the whales with legs myself, easier to understand.
Iâm a student in the Biology program at the State Univeristy of New York, and am a research assistant in Dr. F. Jamesâ program on archosaur and avian phylogenetics at FSU, so I have had the privilege of seeing and handling a number of the specimens I have mentioned.Sorry, I meant a Thecodont ancestor rather than Thecodonts plural. Are you a zoologist? You seem very knowledgeable of vertebrate evolution.
BS or MS?Iâm a student in the Biology program at the State Univeristy of New York, and am a research assistant in Dr. F. Jamesâ program on archosaur and avian phylogenetics at FSU, so I have had the privilege of seeing and handling a number of the specimens I have mentioned.
Vindex Urvogel
Evolutionary biology omits explanations or hypotheses about the origin of life, because the manner in which life originated is irrelevant. You claim that it fails to incorporate and explain the pertinent data concerning the diversity of life and the origin of morphological novelties and advance âcreationâ as an alternative. If you could explicitly enumerate this hypothesis such that it meets the Popperian falsification criterion, including an elaboration of its testable predictions, I would be most appreciative. Furthermore, coul you explicitly list the scientific evidence in favor of this hypothesis which you mention.Chuck,
Evoutions major problem is it only attempts to tell you a small part of the story. It only tries (although quite miserably) to tell you how. A good jounalist can tell you that you need to also ask, why, when, where, and whom. Evolution does not even attempt these questions. Creatiion answers all of them, with much scientific evidence to back them up.