dugong tooth

I finally got an ID on this one. Turns out it isn't peccary, or even gomp, but a left upper m3 of a dugongid, probably Metaxytherium crataegense, the common Calvert Fm. sirenian. The odd thing is that at most we have only found one small rib fragment of dugong at the site, while I know at other sites even where rib fragments are not uncommon, teeth are pretty rare. I should also humbly mention that this is probably the first dugong tooth known from NJ.