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Livyatan is an extinct genus of macroraptorial sperm whale containing one known species: L. melvillei.The genus name was inspired by the biblical sea monster Leviathan, and the species name by Herman Melville, the author of the famous novel Moby-Dick about a white bull sperm whale.
Three species of turtles have been identified: Trachyaspis lardyi, Procolpochelys melii, which are both ancient marine turtles, and Psephophorus polygonus, an ancient leatherback sea turtle. [16] Aside from Zygophyseter , two other cetacean species have been described from this formation: the oldest-known gray whale Archaeschrichtius ruggieroi ...
Livyatan probably targeted medium-sized whales ranging in size from 7–10 m (23–33 ft). Macroraptorials probably competed with the extinct giant shark megalodon for the same food sources. [7] [10] [11] [12] In sperm whales, the supracranial basin holds the spermaceti organ, a series of oil and wax reservoirs which aids in echolocation.
A livyatan refers to a toothed whale that actually existed. According to Kim, the livyatan is an ancient whale related to a modern sperm whale. Its skull is about nine feet long and its teeth are ...
The sperm whale or cachalot [a] (Physeter macrocephalus) is the largest of the toothed whales and the largest toothed predator.It is the only living member of the genus Physeter and one of three extant species in the sperm whale family, along with the pygmy sperm whale and dwarf sperm whale of the genus Kogia.
Sperm whale and bottlenose whale. The sperm whale (Physeter macrocephalus) is the largest species of toothed whale, with adult bulls (males) growing to be about 15–18 m (49–59 ft) long, and weighing about 45–70 metric tons (44–69 long tons; 50–77 short tons).
The Sperm Whale: Sperm whale: 7 August 2011 1: The Camel: Dromedary camel: 30 August 2011 2: The Dinosaur Bird: Southern cassowary: 6 September 2011 3: The Leatherback Turtle: Leatherback sea turtle: 13 September 2011 4: The Racehorse: Thoroughbred horse: 20 September 2011
[27] [58] Contrary to modern sperm whales, most ancient sperm whales were built to hunt whales. Livyatan had a short and wide rostrum measuring 10 feet (3.0 m) across, which gave the whale the ability to inflict major damage on large struggling prey, such as other early whales. Species like these are collectively known as killer sperm whales or ...