from the GNU version of the Collaborative International Dictionary of English

  • A group of extinct carnivorous whales. Their teeth had compressed and serrated crowns. It includes Squalodon and allied genera.

from The Century Dictionary and Cyclopedia

  • One of the primary groups of the order Cetacea, entirely extinct, consisting of the genera Zeuglodon, Squalodon, and other large cetaceans of the Tertiary epoch, remarkable as furnishing connecting-links between the Cetacea and the pinniped aquatic Carnivora.


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