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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
Skull of Livyatan. Macroraptorial sperm whales were highly predatory whales of the sperm whale superfamily (Physeteroidea) of the Miocene epoch that hunted large marine mammals, including other whales, using their large teeth. They consist of five genera: Acrophyseter, Albicetus, Brygmophyseter, Livyatan and Zygophyseter. [1]
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).
Photos show some of their discoveries, but there are countless more specimens to sift through. The first sign of fossils was a shell bed. Construction halted at San Pedro High School when fossils ...
The fossils were first uncovered during the school’s modernization project, which began in 2022. The first find was unearthed in June 2022 beneath the school’s main courtyard, ...
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.
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 ...
Scaldicetus is an extinct genus of highly predatory macroraptorial sperm whale.Although widely used for a number of extinct physeterids with primitive dental morphology consisting of enameled teeth, Scaldicetus as generally recognized appears to be a wastebasket taxon filled with more-or-less unrelated primitive sperm whales.