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Livyatan is the largest fossil sperm whale discovered, and was also one of the biggest-known predators, having the largest bite of any tetrapod. [1] [8] Diagram comparing the upper and lower size estimates of Livyatan (bottom three) with the size of mature sperm whales, including one of the largest individuals recorded (top three), and a human
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.
The fossil record suggests that sperm whales were more common in the Miocene, ... Livyatan melvillei skull. Physeteroidea, sperm whales Stem physeteroids [11]
This does not last in the fossil records, creating difficulty in studying fossil sharks. ... According to Kim, the livyatan is an ancient whale related to a modern sperm whale. Its skull is about ...
The fossil specimen is shorter than that of a 25-meter long (82-foot-long) blue whale — but its skeletal mass still potentially exceeded that of any known mammal or sea vertebrate, including its ...
Zygophyseter varolai is an extinct sperm whale that lived during the Tortonian age of the Late Miocene 11.2 to 7.6 million years ago. It is known from a single specimen from the Pietra Leccese Formation in Italy.
Whales in the desert. The whale fossil was uncovered in the Wadi El-Rayan area, which sits about 24.9 miles (40 kilometers) northeast of the Wadi Al-Hitan World Heritage Site in Egypt’s Western ...
Brygmophyseter is a member of a fossil stem group of hyper-predatory macroraptorial sperm whales from the Miocene (often shortened to "raptorial"). The other members are Acrophyseter, Albicetus, Livyatan, and Zygophyseter, and these five whales have in common enamel-coated teeth in both the upper and lower jaws which were used in hunting large ...