Eric Walker added a number of topics and a number of links to Mammalia, and added Mammalia to Mammaliaformes

Eric Walker added Elephants and Mammoths to Elephantidae, and added Elephantidae to Proboscidea

Eric Walker added Mastodon to Mammutidae, and added Mammutidae to Proboscidea

Eric Walker added Elephantidae and Mammutidae to Proboscidea, and added Proboscidea to Mammalia