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Omnomosaurus

Another Phantom Dromaeosaurid Tooth? - Kem Kem

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Omnomosaurus

I decided last week to keep an eye out for any of those elusive dromaeosaurid-like teeth from the Kem Kem....I think I got super lucky and found one within days!!

 

The morphology doesn't match up with anything I'm familiar with from Morocco, so I'm thinking it fits quite nicely with the general appearance of a dromaeosaur tooth.

 

Apologies for the quality of the photos. I've taken a lot of snaps, but just can't get any super clear shots.

 

 

 

The tooth is 13.5mm in height. Tall and strongly laterally compressed, with a definite recurve.

 

Please be my guest at trying to count the denticles; I've squinted and gone cross-eyed trying, but by my best count it's...

 

Mesial midline: 8/9 per mm

Distal midline: 5 per mm

 

IMG_20190518_105514924.thumb.jpg.6c96b0082b99396923ad3f8fbfcd6526.jpgIMG_20190518_105707138.thumb.jpg.c658f812b501d8e01abb01cee70fa734.jpg

IMG_20190518_152312124.thumb.jpg.4ad09cd88149e2e352c1fce2ab618001.jpgIMG_20190518_152520385.thumb.jpg.c3ed430cf2271582c93b391e7dc4740a.jpg

 

 

 

The mesial carina terminates approx. half way down the anterior edge, and has a very slight twist. You can see where the carina ends in the next photo, as the surface transitions to an almost flat, smooth triangular shape down to the base of the crown (shape reminds me of a tyrannosaurid split carina).

 

Mesial:

 

IMG_20190518_114233090.thumb.jpg.72f7968bf132dc6c2d6ad348363ea6b4.jpg

 

Distal:

 

IMG_20190518_114457198.thumb.jpg.5ae5ee6eacfd5ba3264a049a10484826.jpg

 

Cross-section is "figure-of-8" shaped:

 

IMG_20190518_115509351.thumb.jpg.c911485a97c9e9b7fe111e1ce5f01823.jpg

 

"Pinch" at base (present on both labial & lingual faces):

 

IMG_20190518_115850641.thumb.jpg.5f007ec6489fe67e33137503e8c2c4b9.jpg

 

Sorry again for the sharpness of the photos. My camera is a potato when it gets to macro photos.

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Troodon

Well it certainly has most of the characteristics that one could call this "Dromaeosaurid-like" although its height to base ratio (long and lean) is a bit off although still a good candidate.  Hopefully someday sooner than later paleontologists can confirm the presence of raptors in the Kem Kem or point us to what these type of teeth belong to.   Either way a good tooth add but dont stop looking since there are many different variations andcwho knows which ones fit what species.

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Omnomosaurus
16 minutes ago, Troodon said:

Well it certainly has most of the characteristics that one could call this "Dromaeosaurid-like" although its height to base ratio (long and lean) is a bit off although still a good candidate.  Hopefully someday sooner than later paleontologists can confirm the presence of raptors in the Kem Kem or point us to what these type of teeth belong to.   Either way a good tooth add but dont stop looking since there are many different variations andcwho knows which ones fit what species.

 

Thanks Troodon! It's good to have some support on this one. At this rate, we'll be the fossils before palaeontologists identify everything coming out of the Kem Kem. :P Hopefully they do confirm raptors before too long though - that tooth in your collection surely can't be anything other than dromaeosaurid?!

 

I'm always on the look out for more unusual teeth from Morocco, so I'll definitely keep looking.

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Omnomosaurus

A couple more photos that show serrations slightly better:

 

5ce044040c5fb_MVIMG_20190518_1825162382.thumb.jpg.a8a8b66cd72b98bd32ed018d93f9e2a5.jpg5ce04405566ca_IMG_20190518_1823251492.thumb.jpg.ef78616e8ee6170201e5575ef33697f8.jpg

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suchomimus20

show the serrations next to a ruler for scale (how dense they are) it might help and it does look like one and hopefully it is.:dinothumb:

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Omnomosaurus
6 minutes ago, suchomimus20 said:

show the serrations next to a ruler for scale (how dense they are) it might help and it does look like one and hopefully it is.:dinothumb:

 

I've tried to take those photos a few times, but my camera keeps focussing on the ruler instead of the tooth - I'll give it another go with some fresh daylight tomorrow! :D

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suchomimus20
1 minute ago, Omnomosaurus said:

 

I've tried to take those photos a few times, but my camera keeps focussing on the ruler instead of the tooth - I'll give it another go with some fresh daylight tomorrow! :D

same sometimes the camera focuses on the background or the picture is to blurry.

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Omnomosaurus
4 minutes ago, suchomimus20 said:

same sometimes the camera focuses on the background or the picture is to blurry.

 

Yeah, the 20 or so photos that ended up deleted earlier can attest to that! :ighappy:

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