Re: Trachilos footprints ~6 Ma


On Tue, Oct 12, 2021 at 02:09 AM, fceska_gr wrote:

'mammal footprints in shallow marine sedimentary rocks are otherwise unknown in paleontology...'

I'm not sure that is strictly true, and I'm sure there are plenty more examples.

Your footprint examples are in river sediments and wind-blown sediments, not marine sediments. 

Mammal footprints typically occur with desiccation mudcracks and raindrop marks, and none of these can occur in marine sediments like those at Trachilos, which have been dated by marine foraminifera and nannoplankton. If the marine water is so shallow that a mammal can walk in it, the sediments are typically disturbed by tides, waves, and bioturbation. The flat and smooth Trachilos sediments were probably deposited below wave base, and were later disturbed by dewatering.

Paleoanthropologists typically make claims that are beyond belief, and no one (except maybe creationists) complains. It is like in religion, where respected leaders tell their followers to accept belief in miracles, and those who don't believe are either too polite or too intimidated to challenge those claims. 


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