Other US Theropods

Other US Theropods

The category contains teeth from other US theropod dinosaur species including Avisaurus, Paronychodon, 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).

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).

TroodonitdsTroodontids 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. Torvosaurus
    $950.00

    A Top Quality juvenile, Torvosaurus tanneri tooth. This Torvosaurus crown measures 11/16". The enamel is high quality. Great rich dark brown color. Fair posterior serrations and anterior serrations are worn. Note - the anterior carina end about 1/3 of the way down from the tip. Good overall condition and serrations. No repair or restoration. Torvosaurus was a large predator during the late Jurassic with large teeth designed to slash predators. Legally collected on private land in the Morrison Fm., Salt & Pepper Quarry, Moffat Co., Colorado. Authenticity guaranteed.  Note - a Gem case display is included. A difficult species to find.

    DL12         SIZE: 11/16"   

    Note - Adding 12 Jurassic theropod teeth in May 2022    Link to Allosaurus teeth

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  2. Avisaurus archibaldi
    $185.00

    A rare, Top Quality Avisaurus archibaldi tooth from the Hell Creek Fm. of Montana. A extinct primitive toothed bird from the Enantiornithine bird family. These teeth are triangular and thin, and the crown is non-serrate and may have longitudinal ridges. The root has a strong vertical notch. No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Garfield Co., Montana. Authenticity guaranteed. 

    DM10       Size: 1/8"+

    Note - Adding 10 new Avisaurus teeth in July 2021      Link to Avisaurus catalog.

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  3. Avisaurus archibaldi
    $185.00

    A rare, Top Quality Avisaurus archibaldi tooth from the Hell Creek Fm. of Montana. A extinct primitive toothed bird from the Enantiornithine bird family. These teeth are triangular and thin, and the crown is non-serrate and may have longitudinal ridges. The root has to has a strong vertical notch. No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DM02       Size: 3/16"+

    Note - Adding 10 new Avisaurus teeth in July 2021      Link to Avisaurus catalog.

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  4. Avisaurus archibaldi
    $175.00

    A rare, Top Quality Avisaurus archibaldi tooth from the Hell Creek Fm. of Montana. A extinct primitive toothed bird from the Enantiornithine bird family. These teeth are triangular and thin, and the crown is non-serrate and may have longitudinal ridges. The root has to has a strong vertical notch. No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. Authenticity guaranteed. 

    DM05       Size: 3/16"

    Note - Adding 10 new Avisaurus teeth in July 2021      Link to Avisaurus catalog.

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  5. Avisaurus archibaldi
    $175.00

    A rare, Top Quality Avisaurus archibaldi tooth from the Hell Creek Fm. of Montana. A extinct primitive toothed bird from the Enantiornithine bird family. These teeth are triangular and thin, and the crown is non-serrate and may have longitudinal ridges. The root has to has a strong vertical notch. No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. Authenticity guaranteed. 

    DM01       Size: 3/16"+

    Note - Adding 10 new Avisaurus teeth in July 2021      Link to Avisaurus catalog.

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  6. Avisaurus archibaldi
    $165.00

    A rare, Top Quality Avisaurus archibaldi tooth from the Hell Creek Fm. of Montana. A extinct primitive toothed bird from the Enantiornithine bird family. These teeth are triangular and thin, and the crown is non-serrate and may have longitudinal ridges. The root has to has a strong vertical notch. No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. Authenticity guaranteed. 

    DM04       Size: 3/16"+

    Note - Adding 10 new Avisaurus teeth in July 2021      Link to Avisaurus catalog.

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  7. Avisaurus archibaldi
    $165.00

    A rare, Top Quality Avisaurus archibaldi tooth from the Hell Creek Fm. of Montana. A extinct primitive toothed bird from the Enantiornithine bird family. These teeth are triangular and thin, and the crown is non-serrate and may have longitudinal ridges. The root has to has a strong vertical notch. No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DM03       Size: 3/16"

    Note - Adding 10 new Avisaurus teeth in July 2021      Link to Avisaurus catalog.

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  8. Paronychodon lacustris
    $165.00

    A Top Quality Paronychodon lacustris tooth from Montana. A theropod from the Troodonidae family. These teeth are recurved, flat, with strong longitudinal grooves running the length of the crown. They are non-serrate and may be related to Richardoestesia (see below). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DB03       Size: 9/16"

    Note - Adding 10 new Paronychodon teeth in August 2022      Link to Paronychodon catalog.

     

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  9. Paronychodon lacustris
    $155.00

    A Top Quality Paronychodon lacustris tooth from Montana. A theropod from the Troodonidae family. These teeth are recurved, flat, with strong longitudinal grooves running the length of the crown. They are non-serrate and may be related to Richardoestesia (see below). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DB04       Size: 1/2"

    Note - Adding 10 new Paronychodon teeth in August 2022      Link to Paronychodon catalog.

     

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  10. Paronychodon lacustris
    $155.00

    A Top Quality Paronychodon lacustris tooth from Montana. A theropod from the Troodonidae family. These teeth are recurved, flat, with strong longitudinal grooves running the length of the crown. They are non-serrate and may be related to Richardoestesia (see below). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Carter Co., Montana. Authenticity guaranteed. 

    DB02       Size: 9/16"

    Note - Adding 10 new Paronychodon teeth in August 2022      Link to Paronychodon catalog.

     

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  11. Paronychodon lacustris
    $135.00

    A Top Quality Paronychodon lacustris tooth from Montana. A theropod from the Troodonidae family. These teeth are recurved, flat, with strong longitudinal grooves running the length of the crown. They are non-serrate and may be related to Richardoestesia (see below). No cracks. No repair or restoration. Legally collected on private land in the Hell Creek Fm., Powder River Co., Montana. Authenticity guaranteed. 

    DB05       Size: 7/16"+

    Note - Adding 10 new Paronychodon teeth in August 2022      Link to Paronychodon catalog.

     

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  12. Richardoestesia isosceles
    $125.00

    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 below). Note - Typical serrrated edge shown. 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 7 new Richardoestesia teeth in August 2022      Link to Richardoestesia catalog.

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