Assertion: mastodon's tusk | /r/AtLocation | gravel
Facets:
Source sentences:
text: The instances cited by Hartnagel and Bishop of mastodons that clearly were not mired in bogs include one mastodon whose remains, a tusk, were found in sand near Fairport; another whose tusk and teeth were found in sand and gravel in the town of Perrinton; one whose remains (ribs, skull, tusk, leg bone) were found “about four feet below the surface in a hollow or water course, lying on and in a very hard body of blue clay, and about two feet above the polished limestone . . .