#list_of_extinct_cetaceans
List of extinct cetaceans
The list of extinct cetaceans features the extinct genera and species of the order Cetacea. The cetaceans are descendants of land-living mammals, the even-toed ungulates. The earliest cetaceans were still hoofed mammals. These early cetaceans became gradually better adapted for swimming than for walking on land, finally evolving into fully marine cetaceans.
Wed 4th
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