Shamalama Posted November 20, 2019 Share Posted November 20, 2019 I'm rather embarrassed but i need some ID help on something I purchased a few years ago. My chagrin is because I usually am very good at labeling purchases or at least taking a pic of a label if the seller does not provide one. I have this piece of shale that has some fossil claw or fin marks on it that I recall are swimming traces. The shale comes from the Triassic or Jurassic of the Newark Supergroup in Pennsylvania. Any help is appreciated! 2 -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
Fossildude19 Posted November 20, 2019 Share Posted November 20, 2019 Hey Dave, That is a great plate! Looks like maybe Rhynchosauroides sp. ? I think you're correct with the swimming traces. Very cool. 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...
Rockwood Posted November 20, 2019 Share Posted November 20, 2019 The small dark circular shapes, plant stems or invertebrate traces ? Link to comment Share on other sites More sharing options...
frankh8147 Posted November 21, 2019 Share Posted November 21, 2019 Looks like swim tracks to me too. I had a few looked at earlier this year by some folks who focus on tracks and was told that it can be very difficult to definitively assign these to a species so my guess is that the reason you don't have them labeled is because the seller didn't have have them labeled either. 2 Link to comment Share on other sites More sharing options...
Pemphix Posted November 21, 2019 Share Posted November 21, 2019 21 hours ago, Fossildude19 said: Hey Dave, That is a great plate! Looks like maybe Rhynchosauroides sp. ? I think you're correct with the swimming traces. Very cool. Yup, that's Rhynchosauroides imo. 2 Link to comment Share on other sites More sharing options...
Shamalama Posted November 21, 2019 Author Share Posted November 21, 2019 On 11/20/2019 at 10:07 AM, Fossildude19 said: Hey Dave, That is a great plate! Looks like maybe Rhynchosauroides sp. ? I think you're correct with the swimming traces. Very cool. Thanks Tim! 19 hours ago, Rockwood said: The small dark circular shapes, plant stems or invertebrate traces ? Might could be plant roots as this was lain down in a flood plain area. 2 hours ago, frankh8147 said: Looks like swim tracks to me too. I had a few looked at earlier this year by some folks who focus on tracks and was told that it can be very difficult to definitively assign these to a species so my guess is that the reason you don't have them labeled is because the seller didn't have have them labeled either. Track name works for me! Thanks! 2 hours ago, Pemphix said: Yup, that's Rhynchosauroides imo. Thank you! -Dave __________________________________________________ Geologists on the whole are inconsistent drivers. When a roadcut presents itself, they tend to lurch and weave. To them, the roadcut is a portal, a fragment of a regional story, a proscenium arch that leads their imaginations into the earth and through the surrounding terrain. - John McPheeIf I'm going to drive safely, I can't do geology. - John McPheeCheck out my Blog for more fossils I've found: http://viewsofthemahantango.blogspot.com/ Link to comment Share on other sites More sharing options...
Rockwood Posted November 21, 2019 Share Posted November 21, 2019 1 hour ago, Shamalama said: Might could be plant roots as this was lain down in a flood plain area. My instinct was toward plant. Sphenophytes are good at this sort of habitat too I believe. Link to comment Share on other sites More sharing options...
RuMert Posted November 22, 2019 Share Posted November 22, 2019 Interesting My sites & reports Link to comment Share on other sites More sharing options...
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