Cementum aged critters - Let’s see them..

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This should be a fun one.

I’m cleaning a mink skull for a friend and think I might send in a tiny tooth to Matson’s Lab for aging. I have an elk, deer and a couple pronghorn in the garage to also send in.

I have been thinking how interesting it would be to see pics of animals with real data on the age.

I recently sent a flurry of teeth (mostly bears) in to Matson’s for aging and it was very cool to know how old the animal actually was.

@Big Sky Guy here is on the crew at Matson’s Laboratory and he gave me some excellent details on the codes and confidence levels they come up with and why.. based on what I’d sent in. I’d have sent more bear teeth in but I have a pile of skulls that all look similar and I wasn’t sure which bear was what. The ones I sent in - I at least had them marked somehow.

So here’s the guidelines. One animal per post, as many pics as you want of the animal, field pics, jaw, skull, tooth, etc. BUT the age has to be a lab aged result with cementum analysis from a place such as Matson’s Laboratory- NOT a guess from a check station tech, biologist, or any other alleged expert. 🙂
 
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Something I learned from Arthur @Big Sky Guy - don’t heavily boil or bleach the teeth before sending in as the confidence level may not be as reliable. Some codes they used on my teeth and details..

BR = Broken
CD = Cementum Damaged
BL = Bleached
NA = Not Ageable

The “CC” (Certainty Code) column in the data is a reliability index. The highest “A” reliability ages indicate that the cementum characteristics of the tooth section very nearly match those of the standardized cementum aging model for the species and tooth type. For “B” reliability ages there is histological evidence to support the result, and the correct age is expected to be within the range given in the “Age Range” field. “C” reliability ages are those for which the match between histological evidence and the standardized model is poor. Error is likely, and may occur within the range given.
 
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