Pecole Posted August 22, 2017 Share #1  Posted August 22, 2017 Advertisement (gone after registration) I just discovered this curious and quite big (about 23 cm long and 11 cm in diameter) petrified remain in a recent rocky rubbish, when walking around. What is it? I believe it comes from a kind of ancient reptil, maybe a kind of dinosaur's tail?  Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members!   Link to post Share on other sites Simply register for free here – We are always happy to welcome new members!   ' data-webShareUrl='https://www.l-camera-forum.com/topic/276002-dinosaurs-remain/?do=findComment&comment=3342989'>More sharing options...
Advertisement Posted August 22, 2017 Posted August 22, 2017 Hi Pecole, Take a look here Dinosaur's remain?. I'm sure you'll find what you were looking for!
Michael Geschlecht Posted August 22, 2017 Share #2 Â Posted August 22, 2017 Hello Pierre, Â Nice photo. Â Can we see what it looks like on the other side & can we see what it looks lie from the edges? Â When you pick it up does it feel light, regular weight or heavy for what it is? Â Best regards, Â Michael Link to post Share on other sites More sharing options...
david strachan Posted August 22, 2017 Share #3 Â Posted August 22, 2017 A sedimentary rock, of ripple marks formed in a fine sandstone, I think Pecole. Â All best... Link to post Share on other sites More sharing options...
Pecole Posted August 23, 2017 Author Share #4  Posted August 23, 2017 Your wishes are like orders, Michael! Here are the requested images. And yes, it is VERY heavy.  Welcome, dear visitor! As registered member you'd see an image here… Simply register for free here – We are always happy to welcome new members!    Hello Pierre,  Nice photo.  Can we see what it looks like on the other side & can we see what it looks lie from the edges?  When you pick it up does it feel light, regular weight or heavy for what it is?  Best regards,  Michael  Link to post Share on other sites Simply register for free here – We are always happy to welcome new members!     ' data-webShareUrl='https://www.l-camera-forum.com/topic/276002-dinosaurs-remain/?do=findComment&comment=3343539'>More sharing options...
Pecole Posted August 23, 2017 Author Share #5 Â Posted August 23, 2017 Thank you, David. Your approach is certainly less poetic than mine, but could make sense. Remains the curious and regular bended shape... A sedimentary rock, of ripple marks formed in a fine sandstone, I think Pecole.All best... Link to post Share on other sites More sharing options...
dkCambridgeshire Posted August 23, 2017 Share #6  Posted August 23, 2017 The specimen could be part of a giant ammonite fossil. Google 'ammonites in sandstone' for more information … and Google 'giant ammonites' to see some of the large specimens discovered. I found a complete and larger ammonite fossil in a Peterborough brick pit's Jurassic clay … they are also found in sandstone.  dunk Link to post Share on other sites More sharing options...
pico Posted August 23, 2017 Share #7 Â Posted August 23, 2017 Advertisement (gone after registration) And the term 'giant' is an understatement! Link to post Share on other sites More sharing options...
david strachan Posted August 23, 2017 Share #8  Posted August 23, 2017 The specimen could be part of a giant ammonite fossil. Google 'ammonites in sandstone' for more information … and Google 'giant ammonites' to see some of the large specimens discovered. I found a complete and larger ammonite fossil in a Peterborough brick pit's Jurassic clay … they are also found in sandstone.  dunk Hi dunk  An ammonite was my first impression too. But the septa just don't quite look right for an ammonite or nautilus. It may be though..I'd like to examine it closely.  My money is on a sedimentary structure.  cheers... Link to post Share on other sites More sharing options...
dkCambridgeshire Posted August 24, 2017 Share #9  Posted August 24, 2017 Hi dunk  An ammonite was my first impression too. But the septa just don't quite look right for an ammonite or nautilus. It may be though..I'd like to examine it closely.  My money is on a sedimentary structure.  cheers...   Yes it needs closer examination but bear in mind that over 140 million years ammonia fossils can be subject to pressure and thus become distorted.  dunk Link to post Share on other sites More sharing options...
david strachan Posted August 24, 2017 Share #10 Â Posted August 24, 2017 Realised about post lithification deformation. Â There do seem to be hints of the siphunkle...great word. Â a good find by our observant friend Pecole. Link to post Share on other sites More sharing options...
dkCambridgeshire Posted August 24, 2017 Share #11  Posted August 24, 2017 If it is part of a giant ammonite there might be other parts in the same location.  dunk Link to post Share on other sites More sharing options...
Pecole Posted August 24, 2017 Author Share #12 Â Posted August 24, 2017 Comments by David Strachan and dkCambridgeshire were most interesting and useful. I spent quite a lot of time reading all available information on ammonites through Google. Thank you so much to both. And yes, "dk", i'll search the site for more remains. 140 million years old...Finally, my find is as poetic as I hoped! David, I'd be glad to offer the piece to you, a real amateur and connoisseur, but transport to Adelaide could be quite onerous. Let me know. Link to post Share on other sites More sharing options...
david strachan Posted August 24, 2017 Share #13 Â Posted August 24, 2017 Thank you Pecole, you are kind. But i have some ripple marks and ammonites in my collection. Â Next time you go to your city University, you might like to take the rock to the Geology Department...they will give you a definitive answer...and let us know...;-) Â cheers Link to post Share on other sites More sharing options...
dkCambridgeshire Posted August 24, 2017 Share #14  Posted August 24, 2017 Yes it needs closer examination but bear in mind that over 140 million years,   ammonia  ammonite fossils can be subject to pressure and thus become distorted.  dunk   Spellchecker correction  dunk Link to post Share on other sites More sharing options...
albert Posted August 30, 2017 Share #15 Â Posted August 30, 2017 Looks like a turtle shell. Link to post Share on other sites More sharing options...
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