hammada Posted July 24, 2014 Share Posted July 24, 2014 Crab carapace 1 inch wide in impact breccia (Bunte Breccia) of Ries Meteor Crater (Germany). A little shocked and cooked, but entire! Link to comment Share on other sites More sharing options...
Auspex Posted July 24, 2014 Share Posted July 24, 2014 Wow! I've only ever heard about belemnites from there. I'm having trouble making out the crab; what should I look for? "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
hammada Posted July 25, 2014 Author Share Posted July 25, 2014 Unfortunately I like difficult matters. Added belemnites and notes in the photo. Thanks Link to comment Share on other sites More sharing options...
powelli1 Posted July 25, 2014 Share Posted July 25, 2014 Hi hammaba I am with Chas on this one I can't see a crab and I have a few hundred fossil crabs & crab body parts that I have collected over the years but this one I just don't see one yet. George Link to comment Share on other sites More sharing options...
Mediospirifer Posted July 25, 2014 Share Posted July 25, 2014 I have a couple of brecciated belemnites from the Ries! The only other brecciated fossils I've heard of from there were ammonites. Those were pretty wild looking. I have to agree that the crab is difficult to make out. Is it the lump on the right-hand side, with a couple of dimples in the front? Link to comment Share on other sites More sharing options...
painshill Posted July 25, 2014 Share Posted July 25, 2014 Cool. Here's my piece with shocked Belemnites from the Ries impact: I don't know what that shiny pale thing is at 12 o'clock high in the piece, but I've always fancied it was a piece of crab/lobster carapace. Here's a suevite bomb from the immediate splash field around the crater: It was a double impact of course, although there was an interval between the two meteorites. The other one of the pair of two craters is nearby, at Steinheim. I have a few isolated belemnites from there too, like these: Roger I keep six honest serving-men (they taught me all I knew);Their names are What and Why and When and How and Where and Who [Rudyard Kipling] Link to comment Share on other sites More sharing options...
hammada Posted July 25, 2014 Author Share Posted July 25, 2014 I agree; in my most shocked belemnite secondary dislocations of different angle can be seen, not resulted to the main impact. In an aquarium I saw a crab similar to mine fossil in Bunte Breccia, bat I'm no expert in crabs. Link to comment Share on other sites More sharing options...
hammada Posted July 25, 2014 Author Share Posted July 25, 2014 Hi, Mediospirifer, It's right there; if it's not a cooked crab (because the rock below is merged), it's definitively a fossil, but I would not know what. Thanks Link to comment Share on other sites More sharing options...
Auspex Posted July 25, 2014 Share Posted July 25, 2014 I have outlined what I can make out: "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
Mediospirifer Posted July 26, 2014 Share Posted July 26, 2014 Nice!! My two belemnites look a lot like the pair painshill showed at the bottom of his post. Nice pieces there, painshill! I also have a brecciated stromatoporoid from Serpent Mound crater in Ohio. I'll have to photograph that to show. Tomorrow. Link to comment Share on other sites More sharing options...
hammada Posted July 26, 2014 Author Share Posted July 26, 2014 The right claw is large and well outcrops, the left sinks along with a leg. Maybe this photo is better: I see plates of crinoids, a small ammonite in the lower right (only now!) and the fossil in the center of the attention. Thanks Link to comment Share on other sites More sharing options...
Mediospirifer Posted July 26, 2014 Share Posted July 26, 2014 I'm not seeing the ammonite, although the crinoids are visible. Here are my belemnites: And my Serpent Mound stromatoporoid: I love brecciated fossils. They're a crossover between the fossil collection and the impactite collection! Link to comment Share on other sites More sharing options...
painshill Posted July 26, 2014 Share Posted July 26, 2014 (edited) ... And my Serpent Mound stromatoporoid: I love brecciated fossils. They're a crossover between the fossil collection and the impactite collection! Me too. The other interesting question about the Serpent Mound is what led Native Americans (probably of the Fort Ancient culture) to site the mound on the impact structure. I find it really difficult to believe it's coincidental, but on the other hand, all the evidence suggests that there would have been no obvious sign of a crater or any other evidence of an impact/cryptoexplosion or even anything unusual on the surface that would have drawn any attention at the likely time of construction. Even with modern science, it has been a struggle to confirm it as an impact site and the diagnostic faulted and folded bedrock is well below the surface. Edited July 27, 2014 by painshill Roger I keep six honest serving-men (they taught me all I knew);Their names are What and Why and When and How and Where and Who [Rudyard Kipling] Link to comment Share on other sites More sharing options...
Mediospirifer Posted July 27, 2014 Share Posted July 27, 2014 Me too. The other interesting question about the Serpent Mound is what led Native Americans (probably of the Fort Ancient culture) to site the mound on the impact structure. I find it really difficult to believe it's coincidental, but on the other hand, all the evidence suggests that there would have been no obvious sign of a crater or any other evidence of an impact/cryptoexplosion or even anything unusual on the surface that would have drawn any attention at the likely time of construction. Even with modern science, it has been a struggle to confirm it as an impact site and the diagnostic faulted and folded bedrock is well below the surface. Agreed. It's an excellent question! On the one hand, there are earthworks from that culture and others all over Ohio. It could be coincidental, but Serpent Mound is the most impressive animal effigy mound in Ohio, if not the only one. I don't remember for certain offhand, but most Ohio earthworks are either simple mounds or walled structures, or groups of one or both types. On the other hand, there are exposures of breccias and shatter cones in the area. While I wouldn't expect the people who built the Mound to have recognized the crater remains as an impact structure, it's entirely possible that they did recognize that there was something unusual about the area. We may never know! There have been artifacts found in some earthworks (I think in Ohio, possibly also in Indiana and Wyoming), that were made of hammered nickel-iron from meteorites. Chemical analysis of some of these suggests that the meteoric iron may have come from a known fall in Kansas. Link to comment Share on other sites More sharing options...
hammada Posted July 28, 2014 Author Share Posted July 28, 2014 Here is the ammonite. I see your beautiful fossils are treated with care. A prehistoric impact you could be interested, even for its traces on the local neolithic population, is Kofels in Austria. But the subjet of the post is the crab (which is not seen) and I think it is not possible to deviate towards too different topics that eventually would interest very few people like "pseudofossil in lunar regolith". Thank you Link to comment Share on other sites More sharing options...
MB Posted July 28, 2014 Share Posted July 28, 2014 (edited) I perhaps need glasses but I don't see your crab. Edited July 28, 2014 by MB 1 http://www.mbfossilcrabs.com/ Link to comment Share on other sites More sharing options...
caterpillar Posted July 28, 2014 Share Posted July 28, 2014 Me too! http://www.paleotheque.fr Link to comment Share on other sites More sharing options...
hammada Posted July 29, 2014 Author Share Posted July 29, 2014 Same reply even for MB I respect the analysis of experts specialists and with great curiosity I visited your site, really beautifull and interesting (I confess that I am afraid of live crabs). Now I am holding my sample, but sincerely more I look at it and less alternative identifications I find. At this point I'd be happy if someone would tell me what else can be this fossil which I'm really fond. Thank you Link to comment Share on other sites More sharing options...
Auspex Posted July 29, 2014 Share Posted July 29, 2014 Because you have it in your hands, I have to respect your interpretation more than mine, which is based only on viewing an image on a screen. I cannot distinguish any difference in texture nor color from the matrix, which would help guide my eye. Does lighting make a difference? "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
MB Posted July 29, 2014 Share Posted July 29, 2014 (edited) Ciao Hammada Is not an expertise matter for me but that sincerely I'm unable to see any crab there in the picture, even any fossil, beyond the crinoid. That's all. I'm sorry Edited July 29, 2014 by MB http://www.mbfossilcrabs.com/ Link to comment Share on other sites More sharing options...
hammada Posted July 30, 2014 Author Share Posted July 30, 2014 Looking closer the sample, I realized that on the surface outcrops also something that looks good and that is not a shell and the color is different from the matrix. :)Ok, I note that the discussion is now at an impasse and the administrator can delete it, anyway thanks to everyone. Link to comment Share on other sites More sharing options...
powelli1 Posted July 30, 2014 Share Posted July 30, 2014 Hi hammada this is the best photo so far but sorry I still can not see the crab in it. If you would send a PM to nandomas mybe he can see it, his name is Nando and he also lives in Italy. George Link to comment Share on other sites More sharing options...
Auspex Posted July 30, 2014 Share Posted July 30, 2014 I'm not giving up! Does anyone have a faunal list for the Reis Crater stratum? "There has been an alarming increase in the number of things I know nothing about." - Ashleigh Ellwood Brilliant “Try to learn something about everything and everything about something.” - Thomas Henry Huxley >Paleontology is an evolving science. >May your wonders never cease! Link to comment Share on other sites More sharing options...
hammada Posted July 30, 2014 Author Share Posted July 30, 2014 Auspex, is not exactly what you asked for, but it is very interesting! Powelli 1, Like I can contact Nando? Exkursionsfuehrer-Sediment2006-Ries rid.pdf Link to comment Share on other sites More sharing options...
powelli1 Posted July 30, 2014 Share Posted July 30, 2014 Hi Hammada try Nando's web site at WWW.paleonature.org I hope he can help you out with this. George Link to comment Share on other sites More sharing options...
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