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Megachasma alisonae is an extinct species of megamouth shark that lived during the Eocene (Priabonian, ca. 36 mya).It is the oldest fossil record of a megamouth shark. The type fossil was recovered from the Søvind Marl Formation in Denmark and consists of a single tooth.
The megamouth shark (Megachasma pelagios) is a species of deepwater shark. Rarely seen by humans, it measures around 5.2 m (17 ft) long and is the smallest of the three extant filter-feeding sharks alongside the relatively larger whale shark and basking shark .
Megachasma applegatei is an extinct species of megamouth shark from the Oligocene to early Miocene (28-23 Mya) of the Western United States. [1] [2] The type fossil was discovered in the San Joaquin Valley in 1973, but only described in 2014, when the species was named after its discoverer, Shelton Applegate.
A deep-water megamouth shark was captured near Shizuoka, Japan. Looking at its mouth, we have to say it was named quite appropriately. The shark measured 13 feet long and weighed nearly 1,500 pounds.
Pseudomegachasma ("false megamouth") is an extinct genus of filter-feeding shark that was closely related to the modern sand tiger shark.It is known from Cretaceous strata in Russia and the United States, and is the only known planktivorous odontaspid, as well as the oldest known planktivorous elasmobranch.
Megachasma is a genus of mackerel sharks. It is usually considered to be the sole genus in the distinct family Megachasmidae, though suggestion has been made that it may belong in the family Cetorhinidae, of which the basking shark is currently the sole extant member. [1] Megachasma is known from a single living species, Megachasma pelagios. [2 ...
Sharks could be facing extinction over the next couple of decades. Human interference is largely to blame for the species interference. Overfishing of sharks has increased as the global demand has ...
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