Definition
'Mastodont' is an older, slightly less common spelling of 'mastodon.' Both terms refer to the extinct relatives of elephants, known for their cone-shaped cusps on their molars. So, 'mastodont' and 'mastodon' are essentially interchangeable but 'mastodon' is preferred today. Think of it like 'donut' vs 'doughnut'. ðĐ The preference for 'mastodon' highlights changes in spelling conventions over time. They had a browsing diet and lived until the end of the last Ice Age.