| Carcharodon plicatilis Temporal range: Late Miocene-Early Pliocene, Possible Early Miocene-Late Pliocene records[ citation needed ] | |
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| Jaws reconstruction of C. plicatilis. | |
| Scientific classification | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Chondrichthyes |
| Subclass: | Elasmobranchii |
| Division: | Selachii |
| Order: | Lamniformes |
| Family: | Lamnidae |
| Genus: | Carcharodon |
| Species: | †C. plicatilis |
| Binomial name | |
| †Carcharodon plicatilis | |
| Synonyms [ citation needed ] | |
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Carcharodon plicatilis (meaning "Bended japped/shapped-tooth" in Ancient Greek), also known as giant white shark, or broad-toothed mako, is an extinct species of giant lamnid shark that lived between the Late Miocene and Early Pliocene epochs, probably between 7.1 and 3.6 million years ago. [1] It is also considered one of, if not, the largest species of shark of the family Lamnidae, and is considered a related species to the modern great white shark (Carcharodon carcharias), and possibly a direct ancestor to it, or a transitional species between C. hubbelli and C. hastalis . [2] [3] [4]
The largest individual is depending on the estimation method estimated in maximum about 8.2 and 11.9 meters (27 and 39 ft) in length, with a possible average size of 5.4–6.2 meters (18–20 ft) in length. The larger-than-average individual was about 6.8–7.5 meters (22–25 ft) Fossils similar to C.plicatilis was also found dating to the Early Miocene and Late Pliocene epochs, between 20 and 3 million years ago in North America, Peru and Europe.[ citation needed ] The validity of this species is in dispute, it is often considered as a junior synonym of C. hastalis , but some studies have suggested that C. plicatilis is a valid species and very closely related to the former. C. plicatilis is also known as Isurus xiphodon, depending on the classification.
The classification of C. plicatilis is in debate. It was originally named by Louis Agassiz as species of the genus Oxyrhina , as "Oxyrhina xiphodon" or "Oxyrhina plicatilis". Glickman (1964) reclassified this species in a separate genus, Cosmopolitodus . He named the type species C. hastalis, and three other species, C. plicatilis, C. xiphodon, and C. trigonodon . In 2017 the names C. plicatilis and C. xiphodon were recombined by Alberto Collareta as junior synonyms of Carcharodon plicatilis. [5] The name C. trigonodon is considered a junior synonym of C. hastalis, in part. [6]
Today, the C. plicatilis is placed in the genus Carcharodon , and a possible synonym of C. hastalis or a nomen dubium . [7] [8] [9] But some studies of 2021 and 2023 challenged this view, suggesting that C. plicatilis is a valid species, closely related to C. hastalis, C. hubbelli , and the modern great white shark (Carcharodon carcharias). [10] [11]
Many paleontologists agreed with this view, but some raised concerns about this view, suggesting that the differences highlighted may be due to sexual dimorphism within the same species. [12]
C. plicatilis is a large species of white shark, it is estimated to be between maximum about and 7.5–8.2 meters (25–27 ft) in length, According to the estimation method, it is estimated to be up to about 11.9 meters (39 ft). [13] [14] the average size is estimates is similar to 5.4–6.2 meters (18–20 ft) the modern-day large great white shark (Carcharodon carcharias). [15]
The teeth of C. plicatilis are more robust than C. hastalis, and the shape of the teeth varies greatly from individual to individual. The largest tooth reached 10.3 centimeters (4.1 in) and, Its teeth are quite similar to those of C. hastalis, which is why it is some palaeontologists suspect that it is not a distinct species, but rather a synonym or individual variation.[ citation needed ]
Fossils of C. plicatilis have been found in deposits dated to the Miocene and Pliocene of North America, Europe, Australia, as well as possibly Asia, the Pacific Ocean, Portugal and South America. Fossils of C. plicatilis are very rare and that is why it is difficult to distinguish it from other species, as well as to synonymize it, especially with C. hastalis.
The largest Lamnidae C. plicatilis was one of the top predators in the Miocene to Pliocene ecosystems. According to various fossil evidence, it had a macroraptorial diet, preying on medium-sized fish, dolphins, pinnipeds, and baleen whales 4–6 meters (13–20 ft) long. [16] It targeted prey similar to C. hastalis and the extant C. carcharias , but was able to target larger prey.[ citation needed ]
According to the fossil record, C. plicatilis preyed on large marine mammals, such as small fin whales and beluga whales related species, during the Miocene. Tooth marks remaining on the skull indicate that C. plicatilis bit into the dolphin's head and crushed it instantly. This suggests that the genus Carcharodon possessed the ability to hunt marine mammals despite the absence of teeth side saw blade. [17] C. plicatilis found in is primarily found in the same areas as pinnipeds. This suggests that C. plicatilis preferred pinnipeds. [18]
We suggest that an available and valid name for this species is Isurus plicatilis Agassiz, 1843 (Cione, 1988). ... Oldest record of the Great White ...)