Description: As it turned out the majority of the footprints in the El Pueblo ichnotelmafaces (swamp facies) recorded underwater by tetrapods that were partially swim-hunting. Some footprints are from tetrapods that were actually walking underwater and others, were recorded on moist ground after floodwater receded. A stromatolite from the west water- ingress point that contained a lot of algae and large centipedes included. Stromatolites fossilized from blue-green algae that collected sediment from water. As in the present, blue green algae collected in areas becoming stagnant and contained a bacteria that oxygenated water. Because of the Kasimovian change to terrestrially the environment underwent a decrease in oxygen after swamp forests were buried by uplift sediments. Please note that the age of the El Pueblo Ichnotelmafacies is changing to Kasmovian because of several late-Carboniferous fossils that have emerged and the rationale that small Dimetrodons and very large amphibians points to early stage evolution that preceded the existence of Dimetrodon grandis of the early Permian. The early permian age estimate was provided by outside geologists and paleontologists without the knowledge of fossils that would be found later.Please note that all of our fossils are from the continental United States, from NE New Mexico, US, that was once part of Pangea. For background information of our fossils and fossil quarry please visit the following blogs: Exceptional early Permian footprints, and, Dimetrodon's ichnology and other Permian footprints. (Copy, open new tab and paste, click on address if applicable.) Please note that evidence exists that the El Pueblo swamp facies is of Pennsylvanian age (305 MYA). A paper When the Geologic Time Scale Does Not Match the Evidence: is available to read on Academia.edu. This geologic time difference is negligible although we now know the site is an early evolution site (small dimetrodons and very large amphibians). Because of the many internet references an early Permian age designation will continue. The general biological evolution interval is after lobe finned fishes evolved feet and before large dinosaurs appeared. Contact for any questions you may have. Please note that our policy is return within fourteen days for full refund.
Price: 65 USD
Location: Ribera, New Mexico
End Time: 2024-12-12T05:45:13.000Z
Shipping Cost: 0 USD
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Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 14 Days
Refund will be given as: Money Back
