Escherichtiidae Family of Gray Whales

Gray Whale, Eschrichtius robustus. A representative of the Escherichtiidae Family of Gray Whales.

Phylogeny:  The Escherichtiidae Family of Gray Whales are marine mammals in the Phylum Chordata. There is just one family member, the Gray Whale, Eschrichtius robustus. Historically there were two genera in this Family during the Pliocene Era, 2,580,000 to 5,330,000 years ago, and just one in the Miocene Era, 5,330,000 to 23,000,000 years ago. They are in the Class Mammalia and the Order Artiodactyla, the same order as hoofed ungulates, from which they evolved. They are in the Infraorder Cetacea, the Baleen and Toothed Whales.

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