TikiShark Posted February 12, 2015 Share Posted February 12, 2015 I collected these a a year or so ago from dredge material pulled out of coastal Gulf of Mexico waters off of Mississippi, not sure what geological period the material is from and I can not remember exactly what area they were dredging at the time. #1 The first tooth is ~18 mm from root to tip, front and back images: #2 and 3 The next two teeth I am not real sure if they are teeth or if they are shark teeth. I found a bunch of these and tossed most of them initially, becuase I couldn't decide if they were teeth. The first one is ~11mm and the second is ~16mm, front and back of both: #4 I think this last one is a Mako just wanted verification. It is ~13 mm from root to tip, front and back: Link to comment Share on other sites More sharing options...
jcbshark Posted February 12, 2015 Share Posted February 12, 2015 Number 3 looks like the base of a fish spine Every once in a great while it's not just a big rock down there! Link to comment Share on other sites More sharing options...
Auspex Posted February 12, 2015 Share Posted February 12, 2015 #1 may be a Carcharhinus sp. (possibly C. leucus, Bull Shark, but it's a bit worn, and a tough genus to assign to species). I agree that 2 & 3 are fish spines, possibly pectoral. You are correct on the Mako, but with most of the root missing it will take someone better than I to suggest the species. "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...
Hunt4teeth Posted February 12, 2015 Share Posted February 12, 2015 I'm no expert, but #4 looks to have a bourlette and signs of cusps. I would guess a very worn Angustiden, but will let the experts give their opinions. Jay Link to comment Share on other sites More sharing options...
mkrofdrms Posted February 12, 2015 Share Posted February 12, 2015 Agree with Auspex with 1 and 4, don't think there is a bourlette but a badly worn root. 2 and 3 I have no clue as I only look into shark stuff...suck at anything else, although also suck with teeth, so will follow the thread and see if there is something I may have missed. MK Link to comment Share on other sites More sharing options...
Coco Posted February 12, 2015 Share Posted February 12, 2015 I think that the pics of the 3rd line correspond to spine of catfish (or of a fish of this family). Coco ---------------------- 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...
TikiShark Posted February 18, 2015 Author Share Posted February 18, 2015 Thank you all for the responses. Can you tell me how you determined Carcharhinus? I would like to be able to make a better educated guess in the future. Link to comment Share on other sites More sharing options...
Paleoc Posted March 4, 2015 Share Posted March 4, 2015 Bull shark Link to comment Share on other sites More sharing options...
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