Cosmopolitodus
| Cosmopolitodus Temporal range: Rupelian-Quarternary, c.
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| Teeth of C. hastalis. | |
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| Genus: | †Cosmopolitodus Glyckman, 1964
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| †Cosmopolitodus hastalis Agassiz, 1838
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Cosmopolitodus is an extinct genus of potencialy dubious mackerel sharks that lived in 30 to 1.07 milions years ago, between the Oligocene and Pleistocene. The type species is the Cosmopolitodus hastalis. The genus is formaly know from the appelid of "Broad-toothed mako shark" or "Extinct giant white shark".[1]
The Isurus planus was been replaced in the genus in 2021. Some paleontologist classified the genus as synonym of Carcharodon.[2][3]
Description
The teeth of the C. hastalis is very simillar to the Great white shark (Carcharodon carcharias). Tooth of C. hastalis is very large and thin, being quite narrow. Teeth of C. hastalis are similar in shape to those of C. xiphodon, but they are not the same species. It is estimated that C. hastalis was smaller than C. xiphodon.
Size
As with most extinct sharks, the size of Cosmopolitodus is still uncertain. Some paleontologists compare the teeth of this species to those of the extant C. carcharias, which would indicate a size range of around 5 to 7 meters (16.4 and 23 ft).[4]
The largest species in the genus is therefore believed to be C. xiphodon, which now refers to the extinct shark known as Carcharodon plicatilis. A recent estimate shows that C. xiphodon reached a maximum size of 7 to 8 meters (23-26 ft) in length.[5]
Diet
The C. hastalis was the apex predator of the Neogene, this species hunted small cetaceans, seals, giant fish, penguins and sea turtles.[6][7]
Related pages
References
- ↑ Zevallos-Valdivia, Leonardo; Martínez-Pérez, Carlos; García-Flores, Vilma; Chávez-Valencia, Antenor; Botella, Héctor (2023-06-20). "First record of palaeozoic vertebrates from Peru". Spanish Journal of Palaeontology. 38 (1): 95–100. doi:10.7203/sjp.25691. ISSN 2660-9568.
- ↑ Carcharodon hastalis Agassiz 1838 (white shark). Fossilworks.
- ↑ Zevallos-Valdivia, Leonardo; Martínez-Pérez, Carlos; García-Flores, Vilma; Chávez-Valencia, Antenor; Botella, Héctor (2023-06-20). "First record of palaeozoic vertebrates from Peru". Spanish Journal of Palaeontology. 38 (1): 95–100. doi:10.7203/sjp.25691. ISSN 2660-9568.
- ↑ Catalina Pimiento, Patrick Leopold Jambura (2019). On the origin of the great white shark Carcharodon carcharias.
- ↑ bibliotekanauki.pl https://bibliotekanauki.pl/articles/20139. Retrieved 2025-07-30.
{{cite web}}: Missing or empty|title=(help) - ↑ "Jaws -- 4 million BC: How an extinct shark attacked its prey". ScienceDaily. Retrieved 2025-07-30.
- ↑ "Making sure you're not a bot!". repositorio.ingemmet.gob.pe. Retrieved 2025-07-30.
Bibliography
Other websites
Media related to Cosmopolitodus at Wikimedia Commons