@layman,
Quote:
To my knowledge the above "reasoning" which Darwin used to escape the problem has still not, after more than 150 years of further exploration by geologists, proven to be the case.
150 years on, we seem to waay better know the actual length that the "Cambrian Explosion" lasted(it varies in length from 20 to 60 million years by various geolochemists). We also know that it was merely a response to the gradual change of the geochemical environment of the planet (mostly by photosynthetic "waste products") in which things like "hard parts could be deposited from existing dermal ducts that were used , In the Neoarchean, to excrete fluids that aided in burrowing. Evolution is where you; "Use what ya got and do something new with it" I notice that, in Wikipedia, they seem to include species that werent even prt of the "Explosion". (Wikipedia is the Cartoon network of encyclopedias)
I dont want to get you all angry but, my overall problem with Shapiro has been his "Authority in all things:" position. He knows NOTHING about the fossil record and transitional fossils yet his favorite argument about "Self organizing genomes" v " adaptational evolutionary mechanics" is embarrasing because its TOTALLY CREATIONIST.
His "beliefs" are that;
"The First problem with selection as the source of diversity, is that selection by humans, the subject of Darwin's opening chapter, moodifies existing traits but does not produce NEW TRAITS or NEW SPECIES.
DOGS MAY VARY WIDELY AS A RESULT OF SELECTIVE BREEDING< BUT THEY ALWAYS REMAIN DOGS
Really? Is he that ignorant of the fossil record , homological structures, transitional fossils?
Ive read Shapiros book several years go and was mildly amused at how he jumpd off the truck in what he knows and made some ballsy statements from areas that he understands nothing (apparently) but that doesnt stop his having an opinion.
LOOK , Hes done some really great stuff and nd his arguements are thought provocking , but when he goes wrong, he, (like Margulis) goes off the trck big time.
The Creationists love to quote mine him (which pisses Shapiro off immensely and I dont think he understands why hes such a fertile field for quote mining. SOMETIMES, he just says dumb stuff and it takes people like Jerry Coyne or Sean Carroll to clean up the context.
Im at work in the NE Pa gas fields right now, Ill jump back in when I get home sometime tomorrow or Fri.
PS, the discusion of whether Im a Darwinist or a Neo Darwinist makes me smile.
I am convinced the evolution is wrought on the individual first
Genes are mere "bookkeeping" (We have huge genomic data piles from en demic species (like Galapogos finches (The Grants work )) , Tanganyika Cichlids, and Appalachian cave crickets, and guess how much genetic variation we see on many of these speices
Evolution, by natural selection DOES TOO, result in new species, genes, homologies etc.
Answer your questions?
Try to relax, Im not calling you a creationist, I just accuse you of using Creationist "quote mines" and maybe not fully understanding the implication.