Ankylosauridae & Nodosauridae Teeth - Can You differentiate?

[Jaimin013]

52 minutes ago, jaredchl said:

its looks like Euoplocephalus tutus

 Is Euoplocephalus  described from Judith River formation?

[jaredchl]

20 minutes ago, Jaimin013 said:

 Is Euoplocephalus  described from Judith River formation?

oh my bad, i didn't realize that, im not from USA,  but that tooth looks like Scolosaurus that Penkalski describe in his work (2018), its curious becouse the principal ridge is to extensiv in te crown, and this dont make (create?) mesial and/or distal depresion, also the denticles havent fosses who extent to de cingulum.

my english is not the best

 

[ziggycardon]

This topic pops up like a gift from heaven on my feed. 
It so happens I am expecting an Ankylosauria tooth from Hell Creek tomorrow!  
After reading this I am leaning towards Denversaurus as an ID for my tooth.
This was a good read, very informative as always.  

[Jaimin013]

41 minutes ago, jaredchl said:

oh my bad, i didn't realize that, im not from USA,  but that tooth looks like Scolosaurus that Penkalski describe in his work (2018), its curious becouse the principal ridge is to extensiv in te crown, and this dont make (create?) mesial and/or distal depresion, also the denticles havent fosses who extent to de cingulum.

my english is not the best

 

Think Zuul crurivastator is the only ankylosaur described from Judith River. Pics from the holotype teeth below:

 

I think this tooth is a close match to Zuul or an undescribed species potentially.

 

 

[jaredchl]

2 hours ago, Jaimin013 said:

Think Zuul crurivastator is the only ankylosaur described from Judith River. Pics from the holotype teeth below:

 

I think this tooth is a close match to Zuul or an undescribed species potentially.

 

 

yeah i was reading about that but i couldnt find good pictures of the teeth but the one that is more to the left looks really similar, in specific the denticles.

 

[Nimravis]

Frank @Troodon I believe I had this mis-identified and after reading this post, I believe it is a Nodosaur tooth. I have had this tooth for a very long time and all I know about it is that it came from Canada. What do you say?

 

 

 

[jaredchl]

On 11/12/2020 at 1:26 AM, Nimravis said:

Frank @Troodon I believe I had this mis-identified and after reading this post, I believe it is a Nodosaur tooth. I have had this tooth for a very long time and all I know about it is that it came from Canada. What do you say?

 

 

 

im sure thats belong a nodosaurid dinosaur for the dome shape of the denticles and the carinas, also it have two cingulum on their faces but these differ in size, thats is a feature that differentiates them from the stegosaurs teeth how have  a prominent cingulum in their faces (labial-lingual).

[TyBoy]

On 12/10/2020 at 9:26 PM, Nimravis said:

Frank @Troodon I believe I had this mis-identified and after reading this post, I believe it is a Nodosaur tooth. I have had this tooth for a very long time and all I know about it is that it came from Canada. What do you say?

 

 

Definitely a indet Nodosaurid tooth.  Looks like Frank is still recovering.  Nice.  Do you have a better locality?

[TyBoy]

On 12/9/2020 at 8:03 AM, jaredchl said:

its looks like Euoplocephalus tutus

The only described Ankylosaurinae from the JRF is Zuul.  All about location

[jaredchl]

2 hours ago, TyBoy said:

The only described Ankylosaurinae from the JRF is Zuul.  All about location

thanks ^^

[Nimravis]

9 hours ago, TyBoy said:

Do you have a better locality?

No- I got this about 30 years ago and back then I probably did not ask any further since I was only interested in Mazon Creek fossils, but thought this was cool, since Dino fossils were not usually available as the Fossil Show I would attend.

[Troodon]

Jim Kirkland put this illustration out of different Thyreophoran Teeth, calls it a rough draft so we may see updates

 

[Troodon]

Updated my first page to reflect the addition of an undescribed Nodosaurid to the Hell Creek Fm.   I have seen a large Osteoderm of a new specimen and including the one in my collection believe we have a new species.   The osteoderms are very similar to 

Glyptodontopelta from the Maastrichtian of New Mexico.  I already have feedback from a paleontologist on my specimen supporting something new, similar to Glypto and hopefully we will get similar response on this new specimen.  I have to believe the teeth would be similar to other Nodosaurids and difficult to distinguish between species.