BonuFrailman Posted July 17, 2020 Share Posted July 17, 2020 Hi everyone, I purchased this tooth from the Horseshoe Canyon Formation in Canada recently and was wondering what you guys think of it. The seller sold it to me as Theropod indet, but said he believes it to be Atrociraptor Marshalli. What troubles me is the lack of serrations which might just be worn down. Tooth is 1.2 cm long and originated from the Horseshoe Canyon Formation in Canada. 2 Link to comment Share on other sites More sharing options...
BonuFrailman Posted July 17, 2020 Author Share Posted July 17, 2020 1 Link to comment Share on other sites More sharing options...
BonuFrailman Posted July 17, 2020 Author Share Posted July 17, 2020 1 Link to comment Share on other sites More sharing options...
fossilsonwheels Posted July 17, 2020 Share Posted July 17, 2020 Without serrations it may be hard to get an ID. 1 Link to comment Share on other sites More sharing options...
Troodon Posted July 17, 2020 Share Posted July 17, 2020 Obtaining theropod teeth without serrations really limits identification. Atrociraptor is a Saurornitholestinae so it should have some of the characteristics of Saurornitholestes. Just looking at the base it does not look compressed enough to be similar to Saurornitholestes. Can you provide me length and width(at midpoint) of the base. The ratio might give some clues. My guess its a small tyrannosaurid tooth. Like to also see a photo of the outside carina even without serrations 3 Link to comment Share on other sites More sharing options...
BonuFrailman Posted July 18, 2020 Author Share Posted July 18, 2020 6 hours ago, Troodon said: Obtaining theropod teeth without serrations really limits identification. Atrociraptor is a Saurornitholestinae so it should have some of the characteristics of Saurornitholestes. Just looking at the base it does not look compressed enough to be one. Can you provide me length and width(at midpoint) of the base. The ratio might give some clues. My guess its a small tyrannosaurid tooth. Like to also see a photo of the outside carina even without serrations My apologies I should have asked the seller before they sent it. It’s almost arrived so I’ll post the measurements as soon as it arrives! 1 Link to comment Share on other sites More sharing options...
BonuFrailman Posted July 28, 2020 Author Share Posted July 28, 2020 On 7/17/2020 at 2:56 PM, Troodon said: Obtaining theropod teeth without serrations really limits identification. Atrociraptor is a Saurornitholestinae so it should have some of the characteristics of Saurornitholestes. Just looking at the base it does not look compressed enough to be similar to Saurornitholestes. Can you provide me length and width(at midpoint) of the base. The ratio might give some clues. My guess its a small tyrannosaurid tooth. Like to also see a photo of the outside carina even without serrations Finally received it yesterday, the length of the base is .7 cm and the width is .4 cm 1 Link to comment Share on other sites More sharing options...
Troodon Posted July 28, 2020 Share Posted July 28, 2020 Thank you but cannot confirm its one. Obtaining teeth without serrations eliminates the key feature in identification. Also hopfully the seller provided you with a disposition number to permit legal exportation from Alberta 2 Link to comment Share on other sites More sharing options...
BonuFrailman Posted July 28, 2020 Author Share Posted July 28, 2020 7 hours ago, Troodon said: Thank you but cannot confirm its one. Obtaining teeth without serrations eliminates the key feature in identification. Also hopfully the seller provided you with a disposition number to permit legal exportation from Alberta Thankfully they did include the disposition number on the riker mount they sent me. It’s 000028-000029 1 Link to comment Share on other sites More sharing options...
Troodon Posted July 28, 2020 Share Posted July 28, 2020 . Perfect 2 Link to comment Share on other sites More sharing options...
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