gen Posted December 29, 2017 Share Posted December 29, 2017 Hello everyone, I suspect this bone from the Kemkem Beds of Morocco is a sauropod toe bone. Any opinions? Thanks, Jay Link to comment Share on other sites More sharing options...
Coco Posted December 29, 2017 Share Posted December 29, 2017 Hi, No pic ! Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Pareidolia : here Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
gen Posted December 29, 2017 Author Share Posted December 29, 2017 Here's a reverse picture. Link to comment Share on other sites More sharing options...
gen Posted December 29, 2017 Author Share Posted December 29, 2017 Sorry, is the picture not showing up properly? Jay Link to comment Share on other sites More sharing options...
Coco Posted December 29, 2017 Share Posted December 29, 2017 Yes now it works but I can't help you, sorry. Coco ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici Pareidolia : here Ma bibliothèque PDF 1 (Poissons et sélaciens récents & fossiles) : ici Ma bibliothèque PDF 2 (Animaux vivants - sans poissons ni sélaciens) : ici Mâchoires sélaciennes récentes : ici Hétérodontiques et sélaciens : ici Oeufs sélaciens récents : ici Otolithes de poissons récents ! ici Un Greg... Link to comment Share on other sites More sharing options...
gen Posted December 29, 2017 Author Share Posted December 29, 2017 Okay no worries, thanks for taking a look anyways Jay Link to comment Share on other sites More sharing options...
Troodon Posted December 29, 2017 Share Posted December 29, 2017 I do not think it's a toe bone. The ventral ridge in your first photo is not typical of one. Looks more like a vertebra possibly of a Croc. like this one 1 Link to comment Share on other sites More sharing options...
gen Posted December 29, 2017 Author Share Posted December 29, 2017 Many thanks, that looks the part! Jay Link to comment Share on other sites More sharing options...
LordTrilobite Posted December 29, 2017 Share Posted December 29, 2017 Not a toe bone, this is a vertebra. I highly doubt it's croc though. I have a similar specimen that is most certainly Spinosaurid. I saw this piece on the internet as well and recognised it as a Spinosaurid vert right away. I'm quite sure this is a Spinosaurid anterior dorsal vertebra. Or possibly it could be posterior cervical. Will need photos from the side to tell. But it's either Spinosaurus sp. or Sigilmassasaurus brevicollis. Though I'd say Sigilmassasaurus is more likely due to the strong keel on the bottom of the vertebra. The one feature that would make it definitely Sigilmassasaurus is broken off. Then again, it seems rather long and thin (Sigilmassasaurus has fatter vertebrae near the base of the neck), so that might point more towards Spinosaurus. For reference. Complete neck and some dorsal vertebrae of Sigilmassasaurus (A) and Baryonyx (B). And here's an example of a Sigilmassasaurus anterior dorsal vertebra from my collection. Mine lacks the strong protrusions on the side, which means it's a little further along the back. A side view of your vertebra is needed to properly determine the position. A side view will show if there are any foramina on the side. Indeterminate Spinosaurid mid cervical vertebra. Posterior cervical Sigilmassasaurus vertebra. Probable Sigilmassasaurus anterior dorsal vertebra. This is the vertebra I used for the identification on my specimen. I'd say it looks very similar to yours as well. More anterior dorsal Sigilmassasaurus vertebra. This one is fatter because it's situated more towards the base of the neck. Towards the trunk the vertebrae get longer. So yeah, side view is needed for proper placement, but likely anterior dorsal, possibly posterior cervical from a Spinosaurid Link to the paper where I get all this from. https://peerj.com/articles/1323/?utm_source=TrendMD&utm_campaign=PeerJ_TrendMD_1&utm_medium=TrendMD It's a very long dry technical read, but it has a really good description of these types of vertebrae. 4 Olof Moleman AKA Lord Trilobite Link to comment Share on other sites More sharing options...
Troodon Posted December 30, 2017 Share Posted December 30, 2017 Agreed could be Spinosaurid Link to comment Share on other sites More sharing options...
gen Posted December 31, 2017 Author Share Posted December 31, 2017 Okay, I will add some side views. Hope this helps! Link to comment Share on other sites More sharing options...
gen Posted December 31, 2017 Author Share Posted December 31, 2017 Link to comment Share on other sites More sharing options...
gen Posted December 31, 2017 Author Share Posted December 31, 2017 Link to comment Share on other sites More sharing options...
LordTrilobite Posted December 31, 2017 Share Posted December 31, 2017 I don't see any foramina (holes) on the sides. So it must be an anterior dorsal vertebra. It's probably too incomplete to tell, but due to it being rather wide and it having a strong keel I'd lean more towards Sigilmassasaurus than to Spinosaurus. Though it might be a little squished by the fossilisation process. So I'd label it as Spinosaurid anterior dorsal vertebra. Olof Moleman AKA Lord Trilobite Link to comment Share on other sites More sharing options...
gen Posted January 1, 2018 Author Share Posted January 1, 2018 Thank you Olof for the information. I would never have guessed Sigilmassasaurus. By the way, your 3d scans are amazing! Link to comment Share on other sites More sharing options...
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