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Conversely the increase in baleen whale size may have contributed to the extinction of megalodon, as they may have preferred to go after smaller whales; bite marks on large whale species may have come from scavenging sharks. Megalodon may have simply become coextinct with smaller whale species, such as Piscobalaena nana. [108]
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Megalodon sharks were “the size and weight of a railroad car” and reigned over the world’s oceans “roughly 23 to 3.6 million years ago,” according to the National Museum of Natural History.
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]
The otodus megalodon, or giant tooth, had teeth that were “almost three times larger than teeth of a modern great white shark,” Live Science said. Ocean Exploration Trust was founded in 2008 ...
Phosphate deposits are found throughout the Hawthorn group, but particularly in the lower zone, where beds of dolomite and dolomitic limestone are found. Hawthorn Group deposits are mined for phosphate in central Florida. [4] The Hawthorn group was deposited on a continental shelf. It is predominantly siliciclastic, consisting primarily of fine ...
“And it represents an entire ecology of the ocean 9 millions of years ago.” The fossils were first uncovered during the school’s modernization project, which began in 2022.
Like contemporaneous sharks, at least two species of Otodus (O. angustidens and O. megalodon) made use of nursery areas to birth their young in, specifically warm-water coastal environments with large amounts of food and protection from predators. [14] [10] A possible reproduction area of O. obliquus has been discovered in the Ganntour basin ...