cngodles Posted May 24, 2021 Share Posted May 24, 2021 This one comes from a friend. He found this on a piece of sandstone that had fallen from an outcrop. With his GPS coordinates, it’s close to the border of the Greenbriar and the Mauch Chunk Formation. It looks like a modern mammal track to me, with 4 toe pads and a central pad. But I’ve identified 0 fossil animal tracks so far, so it might just be a strange arrangement of shapes. Mammals doesn’t fit, as it’s 100 million years too early. Synapsids are officially 10 million years out. So I’m at a loss. Anyone good with tracks? Fossils of Parks Township - Research | Catalog | How-to Make High-Contrast Photos Link to comment Share on other sites More sharing options...
Fossildude19 Posted May 24, 2021 Share Posted May 24, 2021 This doesn't look like a track to me. This looks like imprints of something, with maybe some breakage an erosion. 1 2 Tim - VETERAN SHALE SPLITTER VFOTM --- APRIL - 2015 __________________________________________________ "In every walk with nature one receives far more than he seeks." John Muir ~ ~ ~ ~ ><))))( *> About Me Link to comment Share on other sites More sharing options...
cngodles Posted May 24, 2021 Author Share Posted May 24, 2021 Yeah, I feel like it matches up in shape with modern cat, lynx, wolf, otter, etc., but it can't be from that age. It might be that it's not really sandstone and it was hardened from some other material. Perhaps some clay or mud on the back of a piece of sandstone and stepped on by a modern animal. I'm not sure, I didn't see it myself. Thanks for the quick reply. Fossils of Parks Township - Research | Catalog | How-to Make High-Contrast Photos Link to comment Share on other sites More sharing options...
EMP Posted May 24, 2021 Share Posted May 24, 2021 16 hours ago, cngodles said: This one comes from a friend. He found this on a piece of sandstone that had fallen from an outcrop. With his GPS coordinates, it’s close to the border of the Greenbriar and the Mauch Chunk Formation. It looks like a modern mammal track to me, with 4 toe pads and a central pad. But I’ve identified 0 fossil animal tracks so far, so it might just be a strange arrangement of shapes. Mammals doesn’t fit, as it’s 100 million years too early. Synapsids are officially 10 million years out. So I’m at a loss. Anyone good with tracks? The Mauch Chunk produces tetrapod footprints in Pennsylvania, but this is probably not one of them. I've found some tetrapod footprints from the underlying Pocono Group, but again they don't look like this specimen. Generally the footprints occur in shale intervals, not sandstones, such as these from Pennsylvania: Tetrapod Tracks from the Mauch Chunk Formation (Middle to Upper Mississippian) of Pennsylvania, U.S.A. on JSTOR 1 Link to comment Share on other sites More sharing options...
Rockwood Posted May 24, 2021 Share Posted May 24, 2021 2 hours ago, cngodles said: strange arrangement of shapes It is roughly in the ball park of the look seen in Nova Scotia that are thought to be from the time known as Romer's gap. I don't see how just one, is going to make it as a specimen though. Especially with such a rounded look, and indistinct extra features. 1 Link to comment Share on other sites More sharing options...
JimB88 Posted May 24, 2021 Share Posted May 24, 2021 I dont see a track either. That looks like dissolution pits caused by water dripping on the rock over a long time. 1 Link to comment Share on other sites More sharing options...
Plax Posted May 24, 2021 Share Posted May 24, 2021 Poorly preserved Hydnoceras? Link to comment Share on other sites More sharing options...
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