Theropod Tooth -- Tiouraren fm

[Dino Dad 81]

Hey all,

Curious to get your thoughts on a new addition:

• Tiourarén formation, Niger
• CH: 35mm (very rough estimate)
• CBL: 19.2mm
• CBW: 9.7mm
• Mesial serration density: 1.5/mm
• Distal serration density: 1.6/mm
• Transverse undulations present
• Mesial carina extend to approximately 2/3 down

 

 

 

 

 

 

 

 

 

 

 

 

 

 

[jikohr]

Nice tooth!

You, uh.... kinda got your "Kem Kem saturation" going on again.

[Dino Dad 81]

I love the way the colors change based on lighting with this tooth and the one I posted previously. It'd be more accurate if I were shining a white light on it--unfortunately my strong light to assist my Sony a7RII is very "warm". Good you pointed this out.. Here's a pic using my iphone flash:

 

 

Then here was one of the pics I posted yesterday using Iphone without flash:

 

 

Those with more experience may be able to confirm, but I haven't seen these kinds of color variation based on lighting before. Kem Kem doesn't have this sort of thing, I wonder how many places do..

 

Perhaps the base cross section pic (reposted below) sheds some light (no pun intended) on how this preservation came to be on an otherwise text-book looking Tioraren fm tooth (towards the inside):

 

 

 

Then here's the Spinophorosaurus tooth, just as another example:

 

 

Edited September 23, 2022 by Dino Dad 81
*reposting base cross section

[Dino Dad 81]

@Troodon,

Haravex confirmed that it's Mid-Jurassic Niger. He said it's not Megalosaur or Allosaur--is there anything from the Morrison that has any of these features and can at least provide data for scientific process?

[Dino Dad 81]

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Edited September 23, 2022 by Dino Dad 81

[Dino Dad 81]

Troodon has let me know he will no longer be commenting on anything involving a Jurassic Niger tooth (for anyone), due to the scarcity of data on the region. Please tag anyone who might be able to provide input.

[Coco]

I hate to say it, but if @Troodon can’t, I doubt anyone else can if there aren’t studies on those teeth.

 

Coco

[Dino Dad 81]

I’m really just curious to know if there’s anything from other mid/late Jurassic formations that resemble the unusual morphology. Not looking to ID at this point, just see if there’s any educated narrowing of the pool that can be done. Maybe I’ll try Hendrickx.