non-remanié Posted June 22, 2017 Share Posted June 22, 2017 This is from the Campanian of New Jersey. Ankylosaur, some other dinosaur tooth, or something else? What do you guys think? The tooth crown is ~4mm long by ~3mm wide. ---Wie Wasser schleift den Stein, wir steigen und fallen--- Link to comment Share on other sites More sharing options...
ynot Posted June 22, 2017 Share Posted June 22, 2017 1 minute ago, non-remanié said: This is from the Campanian of New Jersey. Ankylosaur or perhaps another dinosaur tooth? What do you guys think? The tooth crown is ~4mm long by ~3mm wide. Need some pictures. Darwin said: " Man sprang from monkeys." Will Rogers said: " Some of them didn't spring far enough." My Fossil collection - My Mineral collection My favorite thread on TFF. Link to comment Share on other sites More sharing options...
zekky Posted June 22, 2017 Share Posted June 22, 2017 Does not look dinosaur. Link to comment Share on other sites More sharing options...
jpc Posted June 22, 2017 Share Posted June 22, 2017 Strange. What is that gray area between the potential crown and root? As much as it looks like a tooth crown, i doubt it is. Link to comment Share on other sites More sharing options...
Troodon Posted June 22, 2017 Share Posted June 22, 2017 Agree with the previous comments Link to comment Share on other sites More sharing options...
non-remanié Posted June 22, 2017 Author Share Posted June 22, 2017 The root portion is without a doubt permineralized bone of some sort. If the "crown" isn't a tooth crown from something, then it is surely is the most extreme oddity. Under magnification it looks like the black material at the bottom of the root should extend all the way to the crown, but it is simply worn and peeled away, exposing the grey surface underneath. It is an odd preservational feature. My initial thought was that the crown looked mammalian, but a very knowledgeable member of the forum suggested dinosaur (ankylosaur, pachycephalosaur, or maybe some other ornithischian). I have only seen ankylosaur teeth from whats available on google images, but the form and morphology of this definitely bears some resemblance to me. I know the late cretaceous fauna of new jersey very well, and I can't imagine anything it might be, if it isn't something quite exotic. ---Wie Wasser schleift den Stein, wir steigen und fallen--- Link to comment Share on other sites More sharing options...
Troodon Posted June 22, 2017 Share Posted June 22, 2017 The root and crown morphology on ornithischians are very different than your specimen. Yours actually looks mammalian. Here are examples of some ornithischians from the late cretaceous. Thescelosaurus, Pachy teeth have a slightly different shaped crowns. Ankylosaurid Nodosaurids Ceratopsian 2 Link to comment Share on other sites More sharing options...
PFOOLEY Posted June 22, 2017 Share Posted June 22, 2017 Perhaps a small, incomplete and very worn sawfish (Ischyrhiza) tooth. 2 "I am glad I shall never be young without wild country to be young in. Of what avail are forty freedoms without a blank spot on the map?" ~Aldo Leopold (1887-1948) New Mexico Museum of Natural History Bulletins Link to comment Share on other sites More sharing options...
non-remanié Posted June 23, 2017 Author Share Posted June 23, 2017 I did consider this because of the generalized peg-like form of it. But I don't really see any features that bear any significant resemblance at all. The "crown" would be the Ischyrhiza root in this scenario, but the roots are hollow if damaged and don't have a central ridge if intact. Perhaps you see something that I'm missing. If there is some specific feature you see in any image, please point it out. 1 ---Wie Wasser schleift den Stein, wir steigen und fallen--- Link to comment Share on other sites More sharing options...
non-remanié Posted June 23, 2017 Author Share Posted June 23, 2017 8 hours ago, Troodon said: The root and crown morphology on ornithischians are very different than your specimen. Yours actually looks mammalian. Here are examples of some ornithischians from the late cretaceous. Thescelosaurus, Pachy teeth have a slightly different shaped crowns. Ankylosaurid Nodosaurids Ceratopsian Gorgeous specimens! Anyone else see mammal? ---Wie Wasser schleift den Stein, wir steigen und fallen--- Link to comment Share on other sites More sharing options...
The Jersey Devil Posted June 25, 2017 Share Posted June 25, 2017 On the fourth picture you can see a piece of enamel on the portion which would have been the root if it was an ankylosaur tooth. That enamel indicates that that part of the specimen was the blade. To me, it looks like a broken I. mira rostral tooth. “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal Link to comment Share on other sites More sharing options...
non-remanié Posted June 27, 2017 Author Share Posted June 27, 2017 I think it is indeed Ischyrhiza. That does appear to be the tiniest sliver of enameloid. Great eye, joseph! And pfooley for the initial call. ---Wie Wasser schleift den Stein, wir steigen und fallen--- Link to comment Share on other sites More sharing options...
The Jersey Devil Posted June 27, 2017 Share Posted June 27, 2017 Thanks “You must take your opponent into a deep dark forest where 2+2=5, and the path leading out is only wide enough for one.” ― Mikhail Tal Link to comment Share on other sites More sharing options...
.thumb.JPG.d64a00de120fb553baacff5149461632.JPG)
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now