✅ SOLVED human footprint fossil ?

[fmerg]

bottom is covered with fossilized seashells
opinions ? real or natural

 

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[SnowDigger]

Wow, what an interesting find! Whatever it ends up being, if you have any experts look at it, I hope you can share your findings here. It certainly is interesting!

 

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[Jason in Enid]

Its probably a concretion, formed around a fossil / fossils in the middle.

 

[fmerg]

you nailed it thank you...

That's Bluestone (actually a type of sandstone) which Ulster County is famous for. It was and still is very popular as a building material and large quantities are still quarried for that purpose. The stone was formed in the upper Devonian period (360-385 million years ago) and is often quite fossiliferous. During the Devonian period life was just starting to colonize dry land and mostly consisted of mosses, early vascular plants, and arthropods (bugs). It's also generally believed that fish first started to move to dry land during this time. However the shape is just an interesting coincidence since nothing at that time would be leaving footprints like that and the shells strongly suggest that this was a marine deposit anyways. It's a nice specimen though with a great shell density; worthy of any mantle!

 

[Red-Coat]

I think you’ll find that’s not from the Pennsylvania Bluestone series. Although, as said, the Bluestones are Upper Devonian highly compressed sandstone, they represent non-marine deposits. When fossils are found, they’re dominated by wood and plant fragments of terrestrial origin. The terminal non-marine Bluestones in Ulster County overlie the Mount Marion beds which are a Middle Devonian limestone facies, interspersed with calcareous shales. Those deposits are definitely marine, rich in Brachiopod and Cephalopod fossils and other marine organisms.

 

[jamest64]

What he said. Absolutely.