The order Proboscidea contains only one family of living creatures, Elephantidae, the elephants. There were many now-extinct species during the Ice Age, including the elephant-like mammoths (mammoths), mastodons, dinodons, spadedons, and elasmodons. The earliest known proboscis was Pilgrimella, followed by Down is the ancestral elephant. Proboscis animals inhabit forests, savannas, and river valleys. They all like to live in groups. Eat plant-based foods.