Praefectus Posted November 27, 2020 Share Posted November 27, 2020 Hello. I found this tooth about a year and a half ago in the spoil piles outside the Aurora Fossil Museum. I was wondering if anyone could help me identify it? I think it might be a mako tooth (Isurus oxyrinchus?). Also, does anyone know why one side of the root is much smaller than the other? Is that damage? Or maybe due to jaw position? Thanks for your help. 1 Link to comment Share on other sites More sharing options...
Coco Posted November 27, 2020 Share Posted November 27, 2020 The tooth and its root are probably slightly rolled/eroded. But given the inclination of the tooth, it can reasonably be assumed that it is a lateral tooth. Coco 3 ---------------------- OUTIL POUR MESURER VOS FOSSILES : ici 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...
hokietech96 Posted November 28, 2020 Share Posted November 28, 2020 It looks like mako to me. There looks to be a change in color on the side with the smaller lobe so I would say there was damage and then smithed out over time. I would wait and see what the experts say. You know my track record with IDs. Haha 2 Link to comment Share on other sites More sharing options...
Darktooth Posted November 28, 2020 Share Posted November 28, 2020 I would agree with Mako. It is very interesting the one root lobe is much smaller then the other. I see no signs of breakage, and I find it hard to imagine one side eroding so much more then the other. Maybe it is pathological. 1 I like Trilo-butts and I cannot lie. Link to comment Share on other sites More sharing options...
siteseer Posted November 29, 2020 Share Posted November 29, 2020 The distal root lobe does show wear on the labial side. It might have been exposed with that end up so it got the most eroded. The tooth has a bit of a washed-out appearance overall. Jess 1 Link to comment Share on other sites More sharing options...
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