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Basilosaurus is thought to have been one of the largest animals of the Paleogene, with the type species B. cetoides measuring around 17–20 metres (56–66 ft) long and weighing up to 15 metric tons (17 short tons). It was the top predator of its environment in the shallows of the inland sea, preying on sharks, large fish and other marine mammals.
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
They calculated that the ancient giant weighed somewhere between 94 and 375 tons (85 and 340 metric tons). The biggest blue whales found have been within that range — at around 200 tons (180 ...
Anthony Kaldellis suggested in 2010 that the name of the whale alluded to the imperial purple and was "a sign of the respect in which the whale was held". [4] This idea was also supported by Sian Lewis and Lloyd Llewellyn-Jones in 2018, who believed the name alluded to the color of royalty and was a sign of great awe for the whale. [5]
There is a new contender for the most massive animal in Earth's history. Scientists on Wednesday described fossils of an early whale unearthed in Peru called Perucetus colossus that lived about 38 ...
The largest known basilosaurid, Perucetus colossus, is believed to be even bigger, with a length of about 17–20 metres (56–66 ft) and possibly comparable to, if not larger than, the modern blue whale in terms of weight, [15] though other researchers argue that it was much lighter. [16] [17]
The blue whale (Balaenoptera musculus) is the largest cetacean on the planet. While some have claimed that there were dinosaurs that topped its size, there is no scientific data to support that ...
The most conspicuous fossils are the skeletons and bones of whales and sea cows, and over several hundred fossils of these have been documented. [9] Wādī al-Ḥītān (Whale Valley) is unusual in having such a large concentration of fossil whales (1500 marine vertebrate fossil skeletons) in a relatively small area.