(January 23, 2014 at 4:57 pm)Chuck Wrote:(January 23, 2014 at 4:25 pm)Pickup_shonuff Wrote: Is there anything that accounts for the abundance of diverse phyla at that time, said to number around 60 (while only 35 different animal phyla exist today), or was natural selection simply less conservative in the pre-Cambrian era?
It is no longer believed that there were so many phyla during that time. All forms from Cambrian appeal to fit within modern Phyla.
Thanks for the help, Chuck. This Mayr book from 2001 seems unfamiliar with those discoveries and modifications. I take it they have only developed within the past 15-20 years? Any good resources you could point me to for further investigation?
