M magikpetrie Guest Mar 6, 2009 #3 According to Gordon Love, of the University of California, Riverside, divergence of complex multicellular animal life began between 635 and 750 million years ago.
According to Gordon Love, of the University of California, Riverside, divergence of complex multicellular animal life began between 635 and 750 million years ago.
N novangelis Guest Mar 6, 2009 #4 Steroids specific to sponges -- 24-isopropylcholestanes -- have been detected in 635 million year old rocks.
Steroids specific to sponges -- 24-isopropylcholestanes -- have been detected in 635 million year old rocks.
