Compound odontoma found in ancient creature’s fossilized jaw

A benign tumor found in the jaw of an ancient relative of modern mammals is the oldest example of compound odontoma yet found, researchers say. The tumor, which is made of tiny tooth-like objects that grow in clusters in soft tissues of the jaw, would have been very painful for the gorgonopsian 255 million years ago, when it was roaming what is now Tanzania, according to findings published in JAMA (12/8)


We find odontomas common in prairie dogs. We also see it in guinea pigs and chinchillas.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s