Fossil Claw Posted January 4, 2016 Share Posted January 4, 2016 Listed by seller as Nodicoeloceras angelonii. Forum members indicated the ID and time period was likely wrong. It is mine now and I would like to correct the ID. Thank you. Link to comment Share on other sites More sharing options...
abyssunder Posted January 4, 2016 Share Posted January 4, 2016 (edited) I'm not a specialist in this, but looks to be like that sold from Madagascar, known as "Pavlov Ammonite". Maybe is Perisphinctes sp.. I found something close to this, Perisphinctes (Prosososphinctes) virguloides (Waagen), from Middle Jurassic-Late Jurassic, but I don't know if it is a valid taxa or not. https://commons.wikimedia.org/wiki/File:Perisphinctes_%28Prosososphinctes%29_virguloides_%28Waagen%29.jpg Edited January 4, 2016 by abyssunder 2 " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Ludwigia Posted January 4, 2016 Share Posted January 4, 2016 I was also thinking along the lines of Perisphinctes, but I can't name the species. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
jhw Posted January 4, 2016 Share Posted January 4, 2016 I would agree, looks like one of your common ammonites from Madagascar. Maybe Perisphinctes virguloides? Jurassic. Link to comment Share on other sites More sharing options...
Ludwigia Posted January 4, 2016 Share Posted January 4, 2016 (edited) One thing for certain is that it's not what it's purported to be. The ribs should split on the venter in a much more complicated fashion than this one, where there is just a simple bipartite splitting. But the thing that dismisses all authenticity is the fact that Nodicoeloceras is a member of the family of the Dactylioceratidae, which occur in the lower Toarcian, not, as given, in the Cretaceous. Parkinsonia occurs in the Bajocian and is an extremely common export from Madagascar. Edited January 4, 2016 by Ludwigia Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
abyssunder Posted January 4, 2016 Share Posted January 4, 2016 I agree, Roger! First of all we need better,close-up pictures,also from ventral view which is important in this case. My fist thought was Parkinsonia, and could be that also. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Fossil Claw Posted January 5, 2016 Author Share Posted January 5, 2016 More pics Link to comment Share on other sites More sharing options...
Fossil Claw Posted January 5, 2016 Author Share Posted January 5, 2016 Some more Link to comment Share on other sites More sharing options...
Fossil Claw Posted January 5, 2016 Author Share Posted January 5, 2016 More Link to comment Share on other sites More sharing options...
Fossil Claw Posted January 5, 2016 Author Share Posted January 5, 2016 I agree, Roger! First of all we need better,close-up pictures,also from ventral view which is important in this case. My fist thought was Parkinsonia, and could be that also. Do those help? Link to comment Share on other sites More sharing options...
abyssunder Posted January 5, 2016 Share Posted January 5, 2016 Yes,it helps! Thank you for the details. 1 " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Fossil Claw Posted January 5, 2016 Author Share Posted January 5, 2016 Yes,it helps! Thank you for the details. Ammonite_morfologia_3.JPG What type is that in the picture? Link to comment Share on other sites More sharing options...
abyssunder Posted January 5, 2016 Share Posted January 5, 2016 Perisphinctes (Prosososphinctes) virguloides (Waagen). " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Fossil Claw Posted January 5, 2016 Author Share Posted January 5, 2016 Looks similar to mine. Is that what you are thinking it is? Thanks. Link to comment Share on other sites More sharing options...
abyssunder Posted January 5, 2016 Share Posted January 5, 2016 Yes. I have one similar. " We are not separate and independent entities, but like links in a chain, and we could not by any means be what we are without those who went before us and showed us the way. " Thomas Mann My Library Link to comment Share on other sites More sharing options...
Ludwigia Posted January 5, 2016 Share Posted January 5, 2016 I agree with Abyssunder. Greetings from the Lake of Constance. Roger http://www.steinkern.de/ Link to comment Share on other sites More sharing options...
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