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Post by pleecan (Peter Lee) on Sept 8, 2011 8:03:44 GMT -5
Found Sept 4, 2011 at Hungry Hollow positioned some 6" from plate that contained placoderm remains. Tentatively identified as a Ptyctodontid placoderm tooth? from Hungry Hollow ON Sigma DP2 + AML-1 lens Attachments:
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Post by pleecan (Peter Lee) on Sept 8, 2011 10:29:56 GMT -5
Dr Bob Carr commented "That is a ptyctodont lower tooth plate. There is a debate over what constitutes a tooth in placoderms, but there are definitely tooth-like structures associated with some of the placoderms. In ptyctodonts, a single upper and lower tooth plate is found on each side."
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Post by Joe Botting on Sept 12, 2011 8:46:49 GMT -5
Impressive - we don't have that sort of stuff 'round our way...
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Post by pleecan (Peter Lee) on Sept 13, 2011 7:46:59 GMT -5
Thanks Joe... the ottawa Museum tells me that the teeth that I am finding are of significant scientific merit as few bother looking at this material... not much is known.
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