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Coronodon (meaning "crown tooth") is a genus of toothed (transitional) baleen whales from the Early Oligocene Ashley and Chandler Bridge formations of South Carolina. The genus contains three species: the type species C. havensteini, and additional species C. newtonorum and C. planifrons.
Mystacodon is the oldest known baleen whale, the holotype specimen dating to 36.4 million year ago to the Priabonian of the latest Eocene.The holotype, MUSM 1917, comprises the braincase, teeth, the spinal cord excluding the sacral vertebrae, some fin bones, and the left hip bone.
Aetiocetus is a genus of extinct basal mysticete, or baleen whale that lived , in the Oligocene in the North Pacific ocean, around Japan, Mexico, and Oregon, U.S. It was first described by Douglas Emlong in 1966 and currently contains known four species, A. cotylalveus, A. polydentatus, A. tomitai, and A. weltoni. [1]
However, primitive baleen whales may have retained enamel coated teeth embedded in the gums, similar to modern sperm whales. Baleen whales, as a group, may be sensitive to low-frequency sounds. Unlike modern baleen whales, Eomysticetus had a blowhole that was positioned ahead of the eyes, and the characteristics of its vertebrae and flipper ...
Baleen whales can have streamlined or large bodies, depending on the feeding behavior, and two limbs that are modified into flippers. The fin whale is the fastest baleen whale, recorded swimming at 10 m/s (36 km/h; 22 mph). Baleen whales use their baleen plates to filter out food from the water by either lunge-feeding or skim-feeding
Engraved on the tooth is a picture of the ship Francis, which artist Fred Myrick served on during the early 1800s. Now, sperm whales are protected under the Marine Mammal Protection Act. So, in ...
Coen Elemans, from the University of Southern Denmark, led a team that studied the carcasses of three whales that had died after being stranded, representing three different baleen whale species ...
A whale species scientists know next to nothing about will undergo the first full dissection after washing ashore on a New Zealand beach this summer.. Since the 1800s, only six other spade-toothed ...
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