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It has been thought that megalodon became extinct around the end of the Pliocene, about 2.6 Mya; [21] [22] claims of Pleistocene megalodon teeth, younger than 2.6 million years old, are considered unreliable. [22] A 2019 assessment moves the extinction date back to earlier in the Pliocene, 3.6 Mya. [23]
The megalodon, a huge shark that was the scourge of the ancient oceans and is a star in modern movie theaters, is named for its "large tooth" - and for good reason. Its serrated teeth - up to ...
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Size matters to these feuding scientists.
Otodontidae is an extinct family of sharks belonging to the order Lamniformes.Its members have been described as megatoothed sharks. [1] [2] They lived from the Early Cretaceous to the Pliocene, and included genera such as Otodus, including the giant megalodon. [3]
Livyatan and megalodon were likely the apex predators of this area during this time. [24] [28] Reconstruction of Livyatan (left) next to Cetotherium (right) L. melvillei is also known from the Bahía Inglesa Formation of Chile, whose fossiliferous beds are dated between the Tortonian and Messinian 9.03–6.45 mya. Like the Pisco Formation, the ...
Marine mammals likely constituted a big part of megalodon's menu, so with it gone, they were free to thrive. Observations indicate that in the years since the mega-shark's extinction, baleen ...
Megalonyx jeffersonii became extinct at the end of the Pleistocene, as part of the Quaternary extinction event, in which all other mainland ground sloths and most other large mammals of the Americas became extinct. [11] The youngest confirmed radiocarbon date is in Ohio, dating to 13,180–13,034 calibrated years Before Present. [3]