danco Posted December 18, 2014 Share Posted December 18, 2014 Here it is. 4.4 x 4.1 x1.8 cm. I'm not sure from where, possibly Texas. Thank you. Link to comment Share on other sites More sharing options...
Ludwigia Posted December 18, 2014 Share Posted December 18, 2014 That's a Perisphinctes with a pathology on the venter. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
danco Posted December 18, 2014 Author Share Posted December 18, 2014 Thank you Ludwigia. Link to comment Share on other sites More sharing options...
Seaforth Posted December 18, 2014 Share Posted December 18, 2014 Perisphinctes indeed. i have several of those that originate from France, Poitiers area if I remember correctly Not sure if they can be found in texas too. In fact, I am looking at one (big Perisphinctes fella) that acts as a paperweight on my office desk Hope this helps cheers from overseas! Pat Link to comment Share on other sites More sharing options...
Ptychodus04 Posted December 18, 2014 Share Posted December 18, 2014 There's no surface exposures of Jurassic rocks in Texas. There are, I believe, a couple of small road cuts out in west Texas that hit some Jurassic sediments but from what I've read, they are very small. Not likely that this ammonite came from there. Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
Ludwigia Posted December 18, 2014 Share Posted December 18, 2014 Wouldn't surprise me if it's from Madagascar. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
Seaforth Posted December 18, 2014 Share Posted December 18, 2014 Yes, looking more closely at it, and comparing it with the one I have from Madagascar, it certainly appears that way. I had it mistaken for a Perisphinctes from France but I would place my money on Madagascar now. Link to comment Share on other sites More sharing options...
danco Posted December 18, 2014 Author Share Posted December 18, 2014 (edited) Thanks everybody. I incline also to Madagascar. My original supposition was Texas (not knowing what kind of ammo and period is) because I bought it from a Texan. Yes, Texas is Cretaceous. Edited December 18, 2014 by danco Link to comment Share on other sites More sharing options...
Ptychodus04 Posted December 18, 2014 Share Posted December 18, 2014 Yes, Texas is Cretaceous. Actually, Texas is: Precambrian, Cambrian, Ordovician/Devonian/Mississippian Undivided, Pennsylvanian, Permian, Triassic, Cretaceous, Paleocene, Eocene, Oligocene, Miocene, Pliocene, Pleistocene, and Holocene depending on where you look. Almost soup to nuts geologically! Regards, Kris Global Paleo Services, LLC https://globalpaleoservices.com http://instagram.com/globalpaleoservices http://instagram.com/kris.howe Link to comment Share on other sites More sharing options...
Auspex Posted December 18, 2014 Share Posted December 18, 2014 Actually, Texas is: Precambrian, Cambrian, Ordovician/Devonian/Mississippian Undivided, Pennsylvanian, Permian, Triassic, Cretaceous, Paleocene, Eocene, Oligocene, Miocene, Pliocene, Pleistocene, and Holocene depending on where you look. Almost soup to nuts geologically! To paraphrase Aldo Leupold: "I love all Texas periods, but am in love with the Permian." "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...
FossilDAWG Posted December 18, 2014 Share Posted December 18, 2014 Actually, Texas is: Precambrian, Cambrian, Ordovician/Devonian/Mississippian Undivided, Pennsylvanian, Permian, Triassic, Cretaceous, Paleocene, Eocene, Oligocene, Miocene, Pliocene, Pleistocene, and Holocene depending on where you look. Almost soup to nuts geologically! All that is missing from that list is the Silurian and Jurassic. I'm pretty sure there is some Jurassic in the deep subsurface, so look for it to show up in another 50 million years or so. Don Link to comment Share on other sites More sharing options...
izak_ Posted December 19, 2014 Share Posted December 19, 2014 Nice specimen! You already have the answer of the species lol Link to comment Share on other sites More sharing options...
danco Posted December 19, 2014 Author Share Posted December 19, 2014 Thanks Dinoboy! Link to comment Share on other sites More sharing options...
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