Bootherium bombifrons
Explore the Ice Age Midwest: Tundra Muskox, Ovibus moschatus
Explore the Ice Age Midwest: Helmeted Muskox, Bootherium bombifrons
Muskox - Wikipedia
Muskoxen - Illinois State Museum
Ovibos moshcatus
Explore the Ice Age Midwest: Tundra Muskox, Ovibus moschatus
Explore the Ice Age Midwest: Helmeted Muskox, Bootherium bombifrons
Muskox - Wikipedia
Muskoxen - Illinois State Museum