Other US Theropods / Troodontids

Other US Theropods / Troodontids

The category contains teeth from other US theropod dinosaur species including Avisaurus, Paronychodon, Pectinodon, Richardoestesia, Sauronitholestes, and Troodon

Avisaurus - is an extinct primitive toothed bird from the Enantiornithine bird family. A genus of Enantiornithine bird from the Late Cretaceous of North America with two known species. They looked very much like birds except for the claws on the end of their arms and jaws with teeth!

Paronychodon - was a theropod dinosaur genus, and thought to be in the Troodonidae family.  This a late Cretaceous dinosaur that lived from the Campanian to Maastrichian (70 to 66 MYA). So, they were present in the Judith River and Hell Creek Fm. Teeth Have been found, but not much else to describe this theropod. Note - Paronychodon teeth are typically found with Richardoestesia teeth and they may be related much like the recent Sauronitholestes & Zapsalis teeth description (where Zapsalis in the Judith River Fm. is now described as the premaxillary tooth).

Pectinodon -  Pectinodon is an extinct genus of troodontid theropod dinosaur from the Late Cretaceous period (66 mya). It currently contains a single valid species, Pectinodon bakkeri. This was a small theropod with teeth similar to, but smaller than Troodon. There are no serrations on the anterior side of the tooth.

Richardoestesia - was a theropod dinosaur genus, and thought to be in the Troodonidae family.  This a late Cretaceous dinosaur that lived from the Campanian to Maastrichian (70 to 66 MYA). So, they were present in the Judith River and Hell Creek Fm. Teeth have been found, but not much else to describe this theropod. Note - Richardoestesia teeth are typically found with Paronychodon teeth and they may be related much like the recent Sauronitholestes & Zapsalis teeth description (where Zapsalis in the Judith River Fm. is now described as the Sauronitholestes premaxillary tooth).

Troodon - Troodon and other Troodontids are a smaller, bird-like dinosaur that lived in western N. America during the late Cretaceous Period. They are part of the part of the Deinonychosauria clade. There was one named No. American species from the Judith River Fm. of Montana - Troodon formosus. Recently the North American Troodontid has been lump into two new genera - Stenonychosaurus and Latenivenatrix mcmasterae(van der Reest & Currie, 2017). Troodontids are know for a large brain, large eyes, and a very unique shaped tooth. The Hell Creek Fm. Troodontid has not been described, but it shares the same very unique tooth as all Troodontids do.

 


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  1. Richardoestesia isosceles
    $55.00

    A High Quality Richardoestesia isosceles tooth from Montana. A theropod from the Troodonidae family. These teeth are straight, flat, and possess ultra-fine serrations that run the length of the crown and may be related to Paronychodon (see beow). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DF10       Size: 3/8"

    Note - Adding 12 new Richardoestesia teeth in June 2024      Link to Richardoestesia catalog.

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  2. Richardoestesia isosceles
    $55.00

    A High Quality Richardoestesia isosceles tooth from Montana. A theropod from the Troodonidae family. These teeth are straight, flat, and possess ultra-fine serrations that run the length of the crown and may be related to Paronychodon (see beow). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DF09       Size: 3/8"+

    Note - Adding 12 new Richardoestesia teeth in June 2024      Link to Richardoestesia catalog.

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  3. Richardoestesia isosceles
    $55.00

    A High Quality Richardoestesia isosceles tooth from Montana. A theropod from the Troodonidae family. These teeth are straight, flat, and possess ultra-fine serrations that run the length of the crown and may be related to Paronychodon (see beow). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DF08       Size: 1/2"

    Note - Adding 12 new Richardoestesia teeth in June 2024      Link to Richardoestesia catalog.

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  4. Richardoestesia isosceles
    $115.00

    A Top Quality Richardoestesia isosceles tooth from Montana. A theropod from the Troodonidae family. These teeth are straight, flat, and possess ultra-fine serrations that run the length of the crown and may be related to Paronychodon (see beow). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DF07       Size: 9/16"

    Note - Adding 12 new Richardoestesia teeth in June 2024      Link to Richardoestesia catalog.

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  5. Richardoestesia isosceles
    $75.00

    A LARGE, High Quality Richardoestesia isosceles tooth from Montana. A theropod from the Troodonidae family. These teeth are straight, flat, and possess ultra-fine serrations that run the length of the crown and may be related to Paronychodon (see beow). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DB06       Size: 5/8"

    Note - Adding 12 new Richardoestesia teeth in June 2024      Link to Richardoestesia catalog.

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  6. Richardoestesia isosceles
    $125.00

    A LARGE, Top Quality Richardoestesia isosceles tooth from Montana. A theropod from the Troodonidae family. These teeth are straight, flat, and possess ultra-fine serrations that run the length of the crown and may be related to Paronychodon (see beow). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DF05       Size: 5/8"

    Note - Adding 12 new Richardoestesia teeth in June 2024      Link to Richardoestesia catalog.

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  7. Richardoestesia isosceles
    $95.00

    A LARGE, High Quality Richardoestesia isosceles tooth from Montana. A theropod from the Troodonidae family. These teeth are straight, flat, and possess ultra-fine serrations that run the length of the crown and may be related to Paronychodon (see beow). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DF04       Size: 5/8"

    Note - Adding 12 new Richardoestesia teeth in June 2024      Link to Richardoestesia catalog.

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  8. Richardoestesia isosceles
    $125.00

    A LARGE, Top Quality Richardoestesia isosceles tooth from Montana. A theropod from the Troodonidae family. These teeth are straight, flat, and possess ultra-fine serrations that run the length of the crown and may be related to Paronychodon (see beow). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DF03       Size: 5/8"

    Note - Adding 12 new Richardoestesia teeth in June 2024      Link to Richardoestesia catalog.

    Learn More
  9. Richardoestesia isosceles
    $125.00

    A LARGE, Top Quality Richardoestesia isosceles tooth from Montana. A theropod from the Troodonidae family. These teeth are straight, flat, and possess ultra-fine serrations that run the length of the crown and may be related to Paronychodon (see beow). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. Authenticity guaranteed. 

    DF02       Size: 5/8"

    Note - Adding 12 new Richardoestesia teeth in June 2024      Link to Richardoestesia catalog.

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  10. Richardoestesia isosceles
    $135.00

    A LARGE, Top Quality Richardoestesia isosceles tooth from Montana. A theropod from the Troodonidae family. These teeth are straight, flat, and possess ultra-fine serrations that run the length of the crown and may be related to Paronychodon (see beow). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. Authenticity guaranteed. 

    DF01       Size: 5/8"+

    Note - Adding 12 new Richardoestesia teeth in June 2024      Link to Richardoestesia catalog.

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  11. Pectinodon bakkeri (Hell Creek Fm)
    $275.00

    A RARE, Pectinodon bakkeri tooth from the Hell Creek Fm. of western North America. An anterior tooth. Pectinodon is a small Troodontid and has teeth similar to Troodon.  Pectinodon are known for their very unique shaped teeth with unusually large distal serrations. The enamel is excellent with a great brown color.  Excellent large posterior and no anterior serrations. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Meade Co., So. Dakota. Authenticity guaranteed. This is your chance to own a rare, quality Pectinodon tooth. Perfect tooth.  Note - A gem jar will be included as photographed. 

    DO18       SIZE: 4 mm

    Note - Adding 10 new Troodontid teeth in March 2023.     Link to Pectinodon catalog.

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  12. Pectinodon bakkeri (Hell Creek Fm)
    $250.00

    A RARE, Pectinodon bakkeri tooth from the Hell Creek Fm. of western North America. Pectinodon is a small Troodontid and has teeth similar to Troodon.  Pectinodon are known for their very unique shaped teeth with unusually large distal serrations. The enamel is excellent with a great brown color.  Excellent large posterior and no anterior serrations. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Meade Co., So. Dakota. Authenticity guaranteed. This is your chance to own a rare, quality Pectinodon tooth. Perfect tooth.  Note - A gem jar will be included as photographed. 

    DO14       SIZE: 4 mm

    Note - Adding 10 new Troodontid teeth in March 2023.     Link to Pectinodon catalog.

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