bean << OK Phil, give me the names of mammals that, through Natural Selection, somehow combined to form one species out of two seperate species. 1) The animal must be bigger than a breadbox. Gnat size animals or smaller are not included. I want to look this up. I realize that I could be all wet, but this would be a chance for you to prove Darwin’s theory. >>
I saw you mention this “two to form one species” before, and you were already corrected on that. I’m not sure why you think that is evolution, or even what that exactly means, or why it would be evidence of anything. What would be evidence for “common descent” (i.e. macroevolution) is if I can point you to ‘reptile-like mammals’ or ‘mammal-like reptiles’ (these are older terms for the transitional fossils between the reptiles and mammals). This is one of the most well-documented transitions in the fossil record. If you are going to look this up, you can find the same book I mentioned:
Evolution: What the Fossils Say and Why It Matters by Prothero (2007)
Turn to page 271, and begin reading chapter 13: “Mammalian Explosion”
“Of all the transitional series that we have examined between major groups of vertebrates, one of the best documented is the transition from primitive amniotes to mammals via the synapsids, formerly known as the ‘mammal-like reptiles.’…Focusing on the lineage of synapsids, we can put together an almost continuous series of well-preserved fossils (figures given) that span the Carboniferous and Permian and straggle into the Trassic before most lineages died out…and the remaining lineages gave rise to true mammals.” (Prothero, page 271)
Prothero then gives several pages of examples and evidence of these transitional mammals, explains carefully why they are transitional, why they give clear evidence of “common descent” or macroevolution, and why creationists are wrong.
“How do the ID creationists handle this extraordinary transitional series? Wells (2000) doesn’t address it, nor does Sarfati (1999, 2002). Davis and Kenyon (2004:100-101) quote a few evolutionists out of context and even concede, ‘without a doubt, the Therapsids are highly suggestive of a Darwinian lineage.’ But they betray their complete lack of understanding of evolution and try to discount the entire example by arguing that it is not a single ancestral lineage but many different lineages. That is
exactly how most evolutionary transitions work in a bushy, branching system – not as ‘missing links’ on a nonexistent ‘chain of being’ (the common creationist misunderstanding) but as multiple closely related lineages that each show progressively more mammalian characteristics.” (Prothero, page 280)
The “mammal transitions” I have are
the following, ranging from the pelycosauria, therapsida, cynodonta, up to primitive mammalia: Paleothyris, Protoclepsydrops, Clepsydrops, Archaeothyris, Varanops, Haptodus, Dimetrodon, Sphenacodon, Biarmosuchia, Procynosuchus, Dvinia, Permocynodon, Thrinaxodon, Cynognathus, Diademodon, Probelesodon, Probainognathus, Exaeretodon, Oligokyphus, Kayentatherium, Pachygenelus, Diarthrognathus, Adelobasileus, Sinoconodon, Kuehneotherium, Eozostrodon, Morganucodon, Haldanodon, Peramus, Endotherium, Kielantherium, Aegialodon, Steropodon, Vincelestes, Pariadens, Kennalestes, Asioryctes, Cimolestes, Procerberus, Gypsonictops.
Prothero concentrates on particularly the synapsids: primitive Ophiacodon, the fin-backed Dimetrodon and Edaphosaurus, the predatory gorgonopsians, the weasel-like Thrinaxodon, finally to “true mammals.” The next grade up from the pelycosaurs are the therapsids, and the next are the cynodonts. You would verify all of this in such books as:
The Rise of Placental Mammals: Origins and Relationships of the Major Extant Clades by Rose/Archibald (John Hopkins Univ, 2005)
The Beginning of the Age of Mammals by Rose (John Hopkins Univ, 2006)
The Origin and Evolution of Mammals by Kemp (Oxford Univ, 2005)
After the Dinosaurs: The Age of Mammals by Prothero (Indiana Univ, 2006)
Mammals from the Age of Dinosaurs: Origins, Evolution, and Structure by Kielan-Jaworowska / Cifelli / Luo (Columbia Univ Press, 2004)
For a brief description of the evidence for
reptile to mammal evolution, see the section in Doug Theobalds
"Evidence for Macroevolution"
Thank you. Darwin’s Theory Proved. QED.
Or any number of books you can find on mammal evolution at your local library. Are you really interested in looking this up? Where do you live? I will help you out and point you to particular books at your own university library.
Phil P