Hi Lena,
I've just looked in Colyer. He examined 799 domestic dog specimens and found your odd P4 in one of them. He doesn't offer any explanation but does note that Fleischer (1967) and Stockhaus (1962) suggested premolar shape variation was common in all canids and especially so in domestic dogs. P1 and P2 were both absent in two of his specimens (he doesn't indicate whether or not they were the same one ) and adds that P1s are almost ubiquitously absent amongst "Eskimo dogs".
Best regards,
Lee G. Broderick. BA (Hons), MSc, FZS
Zooarchaeologist
www.zooarchaeology.co.uk
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-----Original Message-----
From: Analysis of animal remains from archaeological sites [mailto:[log in to unmask]] On Behalf Of Lena Strid
Sent: 16 July 2013 16:37
To: [log in to unmask]
Subject: [ZOOARCH] Dental anomalies on a dog mandible
Dear all,
I have a post-medieval dog with some unusual teeth in the left mandible. The decidious P1-2 have never been lost, and the adult P4 has a single root. The right mandible is normal (although with an absent P1).
Have any one of you seen something similar before?
Lingual view:
http://s893.photobucket.com/user/ossamentaDW/media/Benbilder/P1050242_zps13d872f5.jpg.html
Buccal view:
http://s893.photobucket.com/user/ossamentaDW/media/Benbilder/P1050249_zps9c6b3821.jpg.html
P4 with normal tooth beside it:
http://s893.photobucket.com/user/ossamentaDW/media/Benbilder/P1050247_zps7dc1cb75.jpg.html
With thanks,
Lena
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