Mammoth Tusks, 7.5 feet around the curve Pachycephalosaurus Grallator is an ichnogenus (form

Grallator is an ichnogenus (form taxon based on footprints) which covers a common type of small

Aragonite is a carbonate mineral

Stratigraphy: Francis Creek Shale Member

which is an extra hard form of plaster

Mammoth Tusks, 7.5 feet around the curve Pachycephalosaurus Grallator is an ichnogenus (formMammoths belong to the order Proboscidea, which also includes the American Mastodon and the African and Indian Elephant. The larger species of Mammoth, which appeared about 4 MYA, became extinct about 10,000 years ago, while some of the smaller species existed until about 4,000 years ago. The specimen here is a Woolly Mammoth discovered in Alaska. The Woolly Mammoth is well studied, as several well preserved specimens have been found; it also appears