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Basilosaurus (meaning "king lizard") is a genus of large, predatory, prehistoric archaeocete whale from the late Eocene, approximately 41.3 to 33.9 million years ago (mya). First described in 1834, it was the first archaeocete and prehistoric whale known to science. [2] Fossils attributed to the type species B. cetoides were discovered in the ...
This list of the prehistoric life of Texas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Texas. Precambrian [ edit ]
Formally trained scientists were already investigating the state's fossils by the late 1800s. In 1938, a major dinosaur footprint find occurred near Glen Rose . Pleurocoelus was the Texas state dinosaur from 1997 to 2009, when it was replaced by Paluxysaurus jonesi after the Texan fossils once referred to the former species were reclassified to ...
This list of the Paleozoic life of Texas contains the various prehistoric life-forms whose fossilized remains have been reported from within the US state of Texas and are between 538.8 and 252.17 million years of age.
The whale's remains suggest it's a smaller relative of Basilosaurus cetoides, which lived along Alabama's coast 34-40 million years ago. ... they realized it was the skull of a prehistoric whale ...
Among the baleen whales found, the most common was an undescribed species of cetotheriid whale measuring around 5 to 8 m (16 to 26 ft), and most of the other baleen whales found were roughly the same size. Toothed whale remains found consist of beaked whales (such as Messapicetus gregarius), ancient pontoporiids (such as Brachydelphis mazeasi ...
The cetaceans (whales, dolphins and porpoises) are descendants of land-living mammals, the even-toed ungulates. The earliest cetaceans were still hoofed mammals. These early cetaceans became gradually better adapted for swimming than for walking on land, finally evolving into fully marine cetaceans.
[280] [281] There is even a larger specimen of this genus from Texas estimated at 4.2 m (14 ft) in total length. [282] [280] Partially known Cratochelone is estimated to reach 4 m (13 ft) in total length. [283] Another huge prehistoric sea turtle is the Late Cretaceous Gigantatypus, estimated at over 3.5 m (11 ft) in length. [284]