PoliticalChic
Diamond Member
- Thread starter
- #21
9. Worse news for Darwin fans:
a. Did I say " less than 40 million years to produce the 'Cambrian explosion' is not possible"?
b. Ratiometric analysis changed that:
"Currently, uranium-lead zircon geochronology is the most powerful method for dating rocks of Cambrian age. ... the Cambrian period began at approximately 544 million years ago ... The resulting compression of Early Cambrian time accentuates the rapidity of both the faunal diversification and subsequent Cambrian turnover.
Bowring, et. al., "Calibrating Rates of Early Cambrian Evolution." Calibrating rates of early Cambrian evolution
c. The explosion itself is now believed to be much shorter than thought, lasting no more than 10 million years, and the main "period of exponential increase of diversification" lasting only 5 to 6 million years. Bowring, Op. Cit.
d. In fact, the former 20 to 40 million year 'window' during this occurred was thought to be far too short a period for the natural, random changes into so many new structures and body organization to have occurred.....
....now, the period has been shortened to lasting only 5 to 6 million years!
As this thread is designed to end any belief that an appeal to "infinity" supports the variety of life on the planet, the ever diminishing window, now considered less than a mere handful of millions of years, puts that view to rest.
Darwin has run out of time!
a. Did I say " less than 40 million years to produce the 'Cambrian explosion' is not possible"?
b. Ratiometric analysis changed that:
"Currently, uranium-lead zircon geochronology is the most powerful method for dating rocks of Cambrian age. ... the Cambrian period began at approximately 544 million years ago ... The resulting compression of Early Cambrian time accentuates the rapidity of both the faunal diversification and subsequent Cambrian turnover.
Bowring, et. al., "Calibrating Rates of Early Cambrian Evolution." Calibrating rates of early Cambrian evolution
c. The explosion itself is now believed to be much shorter than thought, lasting no more than 10 million years, and the main "period of exponential increase of diversification" lasting only 5 to 6 million years. Bowring, Op. Cit.
d. In fact, the former 20 to 40 million year 'window' during this occurred was thought to be far too short a period for the natural, random changes into so many new structures and body organization to have occurred.....
....now, the period has been shortened to lasting only 5 to 6 million years!
As this thread is designed to end any belief that an appeal to "infinity" supports the variety of life on the planet, the ever diminishing window, now considered less than a mere handful of millions of years, puts that view to rest.
Darwin has run out of time!