Carboniferouspat Posted November 6, 2017 Share Posted November 6, 2017 Which of the Mazon creek Horseshoes would have been closer to fresh or brackish environment. Has anyone found a Euroopes at Fossil Rock?? Link to comment Share on other sites More sharing options...
Nimravis Posted November 6, 2017 Share Posted November 6, 2017 Even though I never collected at Fossil Rock Campground when it was open, I did collect extensively at Shadow Lakes and an area across the street from that location. That area was the former site of the coal mining Pit 4. I also believe that Fossil Rock was in that same area. Pit 4 contained Freshwater Braidwood Fauna. Here are two pics of different Freshwater Euproops danae Horeseshoe crabs that I found at Pit 4. With that said, I also found a Eurypterid (Marine - Essex Fauna) at Pit 4, that may have been deposited in Fresh water during a storm 300 Million years ago. My Eurypterid- 3 Link to comment Share on other sites More sharing options...
Miocene_Mason Posted November 6, 2017 Share Posted November 6, 2017 @Nimravis is it possible the eurypterid was a freshwater one? I know many of the later ones were. “...whilst this planet has gone cycling on according to the fixed law of gravity, from so simple a beginning endless forms most beautiful and most wonderful have been and are being evolved.” ~ Charles Darwin Happy hunting, Mason Link to comment Share on other sites More sharing options...
Nimravis Posted November 7, 2017 Share Posted November 7, 2017 16 hours ago, WhodamanHD said: @Nimravis is it possible the eurypterid was a freshwater one? I know many of the later ones were. It could possibly be, but not sure. Link to comment Share on other sites More sharing options...
Carboniferouspat Posted November 8, 2017 Author Share Posted November 8, 2017 Thanks for that info,and the pics you posted. That euripterid is awesome...... what is the size of that? Link to comment Share on other sites More sharing options...
TheRocksWillShoutHisGlory Posted November 10, 2017 Share Posted November 10, 2017 Richardson's guide references a study of over 200,000 concretions and there were specimens of horseshoe crabs found in both the braidwood and essex biotas, although very few. And just for reference fossil rock was pit 2, I only got to collect there once and really wish I could go back. Link to comment Share on other sites More sharing options...
Tidgy's Dad Posted November 10, 2017 Share Posted November 10, 2017 Very interesting. I love the eurypterid. Life's Good! Tortoise Friend. Link to comment Share on other sites More sharing options...
Nimravis Posted November 10, 2017 Share Posted November 10, 2017 19 minutes ago, Tidgy's Dad said: Very interesting. I love the eurypterid. Thanks- The funny thing with that concretion is that it had a consistency far different from other concretions that would have fossils. This one looked kind of sandy and if it was cleaned when I first picked it up I would thrown it right down. After I washed the concretions that I collected that day I was cracking some open to show my young niece who was visiting. When I grabbed that one out of the bucket, I told her - "this concretion will not contain a fossil", I was wrong and so happy that I did open it. 1 Link to comment Share on other sites More sharing options...
doushantuo Posted November 10, 2017 Share Posted November 10, 2017 McCoy on concretions(She researches Mazon C.,BTW) mccoyPExceptalPreservationOfFossilsInConcretions-Maz_V-July2013.pdf 1 Link to comment Share on other sites More sharing options...
doushantuo Posted November 10, 2017 Share Posted November 10, 2017 can recommend this(Baird,Palaios 1986): Link to comment Share on other sites More sharing options...
Nimravis Posted November 10, 2017 Share Posted November 10, 2017 On 11/7/2017 at 8:07 PM, Carboniferouspat said: Thanks for that info,and the pics you posted. That euripterid is awesome...... what is the size of that? The fossil it self is about 3" long. Link to comment Share on other sites More sharing options...
Carboniferouspat Posted November 11, 2017 Author Share Posted November 11, 2017 That's an amazing find. I hope to be as lucky one day. Do you still collect much? Link to comment Share on other sites More sharing options...
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