Diverse underwater footprints. El Pueblo early Permian. for Sale

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Diverse underwater footprints. El Pueblo early Permian. For Sale

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Diverse underwater footprints. El Pueblo early Permian.:
$65.00

The current excavation at the El Pueblo ichnotelmafacies is producing diverse bottom-touching footprints of tetrapodshunting or seeking refuge from the hot sun in deepwater. The slab on the right suggests an underwater tail drag different from the narrow tail point of land trackways in moist mud or very shallow water. What are more unusual are the multi-line tail drags that suggest tail fins reminiscent of eel fins or early fishes. Advanced ambulation on land along with a tail fin that enabled fast swimming may have been at play here. Afterall the environment was terraqueous (both land and water). Tail fins might not have gone away with ichthyostega of the Devonian Period. More evidence will be needed to ascertain if some tetrapods possessed tail fins. If a Dimetrodon footprint turns up at the bottom of what was a fifteen or twenty feet-deep concavity it would finally reveal if Dimetrodon was also a deep-water hunter. The El Pueblo swamp was maintaining and increasing its concavity through subsidence until uplifting on the upland produced several cycles of voluminous sediments that finally buried the entire area. By then, tetrapods were relocating further down the fault valley.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 earlyPermian footprints, and, Dimetrodon\'s ichnology and other Permian footprints.(Copy, open new tab and paste, click on addressif applicable.)Please note that evidence exists that the El Pueblo swamp facies is ofPennsylvanianage (305 MYA). A paperWhen the GeologicTime Scale Does Not Match the Evidence:is availableto read on Academia.edu.This geologic time difference isnegligibleand an early Permian age designation willcontinue.The biological evolution interval is after lobe finned fishes evolvedfeet and before large dinosaursappeared. Contact for any questions you may have.Please note that somehow our return policy changed to no returns. Our policy has always been return within fourteendays for full refund. A Sample Digging showing what were layers of soft sediment (mud) at one time. Most of the sediment collected in layers as sand, soil, and clay from turoffer floodwater settled to the bottom. The sediments concreted into rock much like modern cement sets underwater.