Daze Posted February 1, 2023 Share Posted February 1, 2023 (edited) Recently I purchased what is described as a Sarcosuchus tooth, but after I compared it to some Stolokrosuchus teeth I noticed some similarities with it. So now I'm wondering if it's Sarcosuchus or Stolokrosuchus. Location: Gadoufaoua, Téneré Desert, Niger (Erlhaz Fm) Size: 4.3 cm (1.69 inch) Edited February 1, 2023 by Daze Link to comment Share on other sites More sharing options...
Troodon Posted February 1, 2023 Share Posted February 1, 2023 What publication are you comparing your tooth to which indicates it might be Stolokrosuchus? The holotype is in a paywalled paper and have not seen it Link to comment Share on other sites More sharing options...
Daze Posted February 1, 2023 Author Share Posted February 1, 2023 (edited) Well I didn't compare it to a publication, but to several photos of Stolokrosuchus teeth I found online. Most Sarcosuchus teeth seem to be more robust and 'fatter' compared to the one I bought, in the photos of the Stolokrosuchus teeth I saw they seem to be more 'slender' and pointy, like the one I bought. Edited February 1, 2023 by Daze Link to comment Share on other sites More sharing options...
Kikokuryu Posted February 1, 2023 Share Posted February 1, 2023 Stolokrosuchus is basically just a marketing name so they don't have to say, indeterminate croc tooth. If you don't know what croc it is, slap a Stolokrosuchus on it. If it's big and robust, you slap a Sarcosuchus on it. At the very least, since Sarcosuchus is the largest croc currently described, your best shot is probably grabbing the really big ones since there's not a huge amount to go off of yet. Link to comment Share on other sites More sharing options...
Troodon Posted February 1, 2023 Share Posted February 1, 2023 You have two issues, first we cannot validate what the morphology of one looks like and the second is the accuracy of the provenance provided. Seller images may be correct but we rely on published information to support ID's not online images. These deposits are also more accurately described as the Tegama Group which consist of the Echkar, Erlhaz and Tazole Formations because they are virtually on top of one another. I find it difficult to see how local diggers can distinguish between these layers and then this material passes through many hands. There are also Jurassic deposits in the Gadoufaoua area which also complicate identification. Isolated material from Niger is difficult to definitively identify unless it has very diagnostic features. Link to comment Share on other sites More sharing options...
Troodon Posted February 1, 2023 Share Posted February 1, 2023 7 minutes ago, Kikokuryu said: Stolokrosuchus is basically just a marketing name Appears to be a published name, I'm not familiar with it https://www.schweizerbart.de/papers/njgpa/detail/217/89345/A_new_Early_Cretaceous_crocodyliform_from_Niger?af=crossref Link to comment Share on other sites More sharing options...
Daze Posted February 1, 2023 Author Share Posted February 1, 2023 Thanks guys, very informative! Link to comment Share on other sites More sharing options...
Praefectus Posted February 1, 2023 Share Posted February 1, 2023 6 hours ago, Troodon said: What publication are you comparing your tooth to which indicates it might be Stolokrosuchus? The holotype is in a paywalled paper and have not seen it This journal is really frustrating. No matter what I do, I can't unlock it. 1 Link to comment Share on other sites More sharing options...
Troodon Posted February 1, 2023 Share Posted February 1, 2023 1 hour ago, Praefectus said: This journal is really frustrating. No matter what I do, I can't unlock it. Thanks Trevor appreciate the effort 1 Link to comment Share on other sites More sharing options...
Francesco1994 Posted February 1, 2023 Share Posted February 1, 2023 3 hours ago, Praefectus said: This journal is really frustrating. No matter what I do, I can't unlock it. it's an almost amateur journal, it has an impact factor of 1.03, I wouldn't trust it much even if it were open access... Link to comment Share on other sites More sharing options...
piranha Posted February 1, 2023 Share Posted February 1, 2023 16 minutes ago, Francesco1994 said: it's an almost amateur journal, it has an impact factor of 1.03, I wouldn't trust it much even if it were open access... That statement is demonstrably false. Fortey, Peng, Geyer, Van Viersen, Feist, Basse, Crônier, Chlupác, Alberti, Haas, Erben, etc., are among the trilobite specialists that have published in NJGPA. They are certainly not amateurs by any stretch of the imagination! 1 Link to comment Share on other sites More sharing options...
Francesco1994 Posted February 1, 2023 Share Posted February 1, 2023 3 minutes ago, piranha said: That statement is demonstrably false. Fortey, Peng, Geyer, Van Viersen, Feist, Basse, Crônier, Chlupác, Alberti, Haas, Erben, etc., are among the trilobite specialists that have published in NJGPA. They are certainly not amateurs by any stretch of the imagination! then I apologize, due to professional deformation and ignorance regarding these names I tend to rely too much on impact factors, Link to comment Share on other sites More sharing options...
piranha Posted February 1, 2023 Share Posted February 1, 2023 5 minutes ago, Francesco1994 said: then I apologize, due to professional deformation and ignorance regarding these names I tend to rely too much on impact factors, Journal of Paleontology is also low at 1.47. Impact factor is not an all-encompassing metric in determining the overall quality of a journal. 1 2 Link to comment Share on other sites More sharing options...
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