micatala wrote:
How we label the phyla is a human artifact.
All labeling would be a human artifact.
Let's look at how it is defined.
"At the most basic level, a phylum can be defined in two ways: as a group of organisms with a certain degree of morphological or developmental similarity (the phenetic definition), or a group of organisms with a certain degree of evolutionary relatedness (the phylogenetic definition)."
http://en.wikipedia.org/wiki/Phylum
So, different phyla should certainly have major differences morphologically and/or genetically. According to evolutionary theory, different phyla could only have originated through genetic changes. And these would have been fairly major changes to form major morphological differences enough to categorize organisms by.
I bring up the Cambrian explosion as evidence that the fossil record does not show a neat record of simple to complex life from the bottom to the top of the stratas. I'm not bringing this up to address
how the fossils arrive at any particular strata.
The fact that there are fewer existing phyla now does not describe the variability of life as we know it now. It does not reflect that huge changes at the species level that has occurred in the fossil record.
I do not deny species level evolution. There are certainly a huge variety in the lower classifications of life (species, genus).
But, how can it be explained that there is a huge diversity of phyla at the beginning and only
decreases over time?
grumpy can further elaborate on what he means by "complexity" but I am quite certain he does not measure complexity by the number of phyla.
Not only on the number, but on the
morphological features of each phylum.
Once again, you avoid the central issues by bringing up an essentially irrelevant point.
I think it's entirely relevant considering we are discussing fossils at this time.
How would an increase or decrease in the number of words humans use to describe the phyla support or falsify the SG?
Categorization into different phylas are by major morphological differences. Whether they are called by something else, they would still have significant morphological differences.
What it shows is that the fossil record and the theory of evolution are incompatible. The fossil record does not show an increase in major morphological changes over time. Rather, it shows an abrupt onset of complex organisms and a decrease in phyla over time. Shouldn't one expect that if evolution is true, it should be few phyla at the beginning and an increase over time? Even Darwin recognized this problem. He expected that the data would catch up to his theory. But after 150 years, the data still is against the theory.
How would it help distinguish between the FM and the SG?
If the fossil record instead contained 1 or 2 phyla at the bottom and 50+ at the top, that would be difficult to account for in the FM. And it would be consistent with evolutionary theory. But, this is not what we see.
In the FM, macroevolution is not part of the model. There is no increase in the complexity of life over time. Complex life existed at the time of the flood. And they got rapidly buried.
About the only possible point I could see is that under the FM and assuming all life or most life that ever existed up to the time of the flood existed at the time of the flood, one should see all that life mixed up in the layers.
In fact, it seems to me one would expect all phyla existing throughout the layers, rather than fewer phyla as you have asserted is what we do find.
If the earth was a giant mixing bowl and the flood kept on stirring all the contents into one homogeneous mixture, then that might be true.