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Hello

 I have a Tyrannosaurid tooth from Zhucheng, Shandong Province, China. 

Few years ago, I bought it from the local people (farmers) at a very low price in Zhucheng (not now,Not allowed by law)

L:4.8cm

CBL:3.5cm

CBW:2.2cm

Distal serration density(base):13 /5mm

enamel texture:Braided or Irregular

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A large tyrannosaurine Zhuchengtyrannus magnus was described in the attached paper.  Its paywalled so I dont have access to it.  Its from the same locality as yours and the morphology looks similar.  So if you are comfortable it came from that location good chance its that species.

 

https://www.sciencedirect.com/science/article/abs/pii/S0195667111000371?via%3Dihub

 

Screenshot_20220831-094915_Firefox.thumb.jpg.5279530661336243b80f4520f3884b51.jpg

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12 minutes ago, Troodon said:

A large tyrannosaurine Zhuchengtyrannus magnus was described in the attached paper.  Its paywalled so I dont have access to it.  Its from the same locality as yours and the morphology looks similar.  So if you are comfortable it came from that location good chance its that species.

 

https://www.sciencedirect.com/science/article/abs/pii/S0195667111000371?via%3Dihub

 

Screenshot_20220831-094915_Firefox.thumb.jpg.5279530661336243b80f4520f3884b51.jpg

Thank you, I've finally waited for you!!

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  • 2 weeks later...

hi @Troodon I read the paper, I have a doubt, it seems that my tooth serration density is larger than that in Fig5(It's just what I can see. There's no detailed data in the paper)  My serration are arranged more closely, more like trex. Will such an analysis deny that it is Zhuchengtyrannus? I'd like to hear your opinion, thank you!!!

 

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mmexport1663069616237.thumb.jpg.2d700adf5b55cfd617d281aed9ac2b3a.jpg

 

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mmexport1663069736768.thumb.jpg.bcdae2216a3a30bbe1f6f7c7b59dac35.jpg

 

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Its unfortunate there are no specifics in that paper.  What I can say is that the denticle shape is typical of a Tyrannosaurid.  I can also say that there is quite a bit of variation in serration density in the dentition of  T. rex depending on position and age.  So that alone is not a good characteristic to argue against this being  Zhuchengtyrannus.   If you are very comfortable with the provenance its the only large, theropod described from that locality that would fit the size of your teeth.    

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2 hours ago, Troodon said:

Its unfortunate there are no specifics in that paper.  What I can say is that the denticle shape is typical of a Tyrannosaurid.  I can also say that there is quite a bit of variation in serration density in the dentition of  T. rex depending on position and age.  So that alone is not a good characteristic to argue against this being  Zhuchengtyrannus.   If you are very comfortable with the provenance its the only large, theropod described from that locality that would fit the size of your teeth.    

Yes, but the excavation work in Zhucheng is not in progress. Many people believe that there is another Tyrannosaurid in Zhucheng. Now we have to wait and see.Thanks for your help!

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