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Salamander jaws

ThePhysicist

By ThePhysicist

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Salamander jaw fragments. (A) premaxilla; (B) dentary fragments (Scapherpeton?); (C) jaw fragment with intact teeth (Habrosaurus?).

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Hell Creek Formation Microsite

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Jurassicbro238

Jurassicbro238

Posted

This is great stuff! I've learned a lot about salamanders lately and for Habrosaurus, there's a groove on the labial side almost parallel with the tooth shelf on the lingual side. Sometimes it's covered by bone though.

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ThePhysicist

ThePhysicist

Posted

2 hours ago, Jurassicbro238 said:

This is great stuff! I've learned a lot about salamanders lately and for Habrosaurus, there's a groove on the labial side almost parallel with the tooth shelf on the lingual side. Sometimes it's covered by bone though.

Thank you, I'm fairly certain the dentaries in (B) aren't from Habrosaurus, and more likely from Scapherpeton. The labial surfaces are smooth and largely featureless.

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