RCFossils Posted November 25, 2019 Share Posted November 25, 2019 There are currently 3 recognized species of horseshoe crab known from the Mazon Creek deposit. Of these 3, Liomesaspis is the rarest. They are only known from the Braidwood (non marine) portion of the deposit. The most defining feature is the bulbous cardiac lobe. The few specimens that I have seen are often poorly preserved. 5 Link to comment Share on other sites More sharing options...
RCFossils Posted November 25, 2019 Author Share Posted November 25, 2019 Here is an image of the 3 recognized species of Mazon Creek horseshoe crab. From left to right Euproops danae, Paleolimulus sp and Liomesaspis. 7 Link to comment Share on other sites More sharing options...
Nimravis Posted November 25, 2019 Share Posted November 25, 2019 Very showy pieces, I do not have a Liomesaspis. Link to comment Share on other sites More sharing options...
Nimravis Posted November 25, 2019 Share Posted November 25, 2019 This is my favorite horseshoe crab in my collection- Paleolimulus. 3 Link to comment Share on other sites More sharing options...
RCFossils Posted November 25, 2019 Author Share Posted November 25, 2019 19 minutes ago, Nimravis said: This is my favorite horseshoe crab in my collection- Paleolimulus. That is a nice specimen. It looks like there is more detail that could be prepped out. 1 Link to comment Share on other sites More sharing options...
Wrangellian Posted November 25, 2019 Share Posted November 25, 2019 As always, impressive stuff. I see a few spelling mistakes, fyi... Link to comment Share on other sites More sharing options...
oilshale Posted November 25, 2019 Share Posted November 25, 2019 Very impressive stuff, but.. I’love to see the pieces in ‘Collections’. Be not ashamed of mistakes and thus make them crimes (Confucius, 551 BC - 479 BC). Link to comment Share on other sites More sharing options...
RCFossils Posted November 25, 2019 Author Share Posted November 25, 2019 4 hours ago, Wrangellian said: As always, impressive stuff. I see a few spelling mistakes, fyi... Thanks! Have to love autocorrect. Link to comment Share on other sites More sharing options...
bigred97 Posted November 25, 2019 Share Posted November 25, 2019 I don't think I would have recognized that specimen of Liomesaspis as a fossil. It doesn't look very much like the other two. I suppose I would have thought it was something unusual and put it in my drawer of unknowns. I have more unknowns than recognizable fossils at this point, I'll have to start posting more of those in my topic to clear up some space. Again, thank-you for these posts! I've learned so much! Chris Link to comment Share on other sites More sharing options...
Wrangellian Posted November 25, 2019 Share Posted November 25, 2019 10 hours ago, RCFossils said: Thanks! Have to love autocorrect. Thought that's what it was. Link to comment Share on other sites More sharing options...
grandpa Posted November 26, 2019 Share Posted November 26, 2019 OMG, I love this series of reports. It's like a super-detailed trip to a Mazon Creek Museum with hand-delivered details on the specimens. It really gets my juices flowing - like finding them myself. 2 Link to comment Share on other sites More sharing options...
Nimravis Posted November 26, 2019 Share Posted November 26, 2019 Rob does a great job with his write-ups, I could never do that, I can just add other examples to his great examples if I have them in my collection. @grandpa 1 Link to comment Share on other sites More sharing options...
bigred97 Posted November 27, 2019 Share Posted November 27, 2019 I like that you are adding your photos, @Nimravis, the more examples I get to see the better. You both have such awesome collections, and then to see the best of each in one place is just a pure delight. Thanks again to you both! Chris 2 Link to comment Share on other sites More sharing options...
grandpa Posted November 27, 2019 Share Posted November 27, 2019 4 hours ago, bigred97 said: Thanks again to you both I say a big "Thank you" to you both as well. I said it before, I'll say it again: "I love this series". Link to comment Share on other sites More sharing options...
Nimravis Posted November 28, 2019 Share Posted November 28, 2019 Here is a cute, tiny Euproops from my collection. 3 Link to comment Share on other sites More sharing options...
michele 1937 Posted November 30, 2019 Share Posted November 30, 2019 On 25/11/2019 at 04:24, RCFossils said: Ecco un'immagine delle 3 specie riconosciute di granchio a ferro di cavallo di Mazon Creek. Da sinistra a destra Euproops danae, Paleolimulus sp e Liomesaspis. I sent you 2 messages. I'll wait for an answer Thanks Michele 1937 Link to comment Share on other sites More sharing options...
Ruger9a Posted November 30, 2019 Share Posted November 30, 2019 Absolutely beautiful specimens...….. Link to comment Share on other sites More sharing options...
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