Megalolamna
Megalolamna Temporal range: Early to Mid Miocene
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Fossil teeth from the Dos Bocas Formation, Ecuador | |
Scientific classification | |
Kingdom: | Animalia |
Phylum: | Chordata |
Class: | Chondrichthyes |
Superorder: | Selachimorpha |
Order: | Lamniformes |
Family: | †Otodontidae |
Genus: | †Megalolamna |
Species: | †M. paradoxodon
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Binomial name | |
†Megalolamna paradoxodon Shimada et al., 2016
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Megalolamna is an extinct genus of lamniform shark that belongs to the family Otodontidae. Its name comes from the similarity of its teeth to those of the extant shark genus Lamna. It is known from the early Miocene of Peru, Oi and of Japan, and the Jewett Sand Formation of California and Pungo River Formation, North Carolina in the United States, implying a cosmopolitan distribution. It is considered to be the sister genus of Otodus. The study of Megalolamna's taxonomic relationships also demonstrates the possibility that Otodus needs to include the species sometimes assigned to Carcharocles (i.e., the megatoothed lineage, including megalodon) in order to be monophyletic.[1]
References[]
- ^ Shimada, K.; Chandler, R. E.; Lam, O. L. T.; Tanaka, T.; Ward, D. J. (2016-10-03). "A new elusive otodontid shark (Lamniformes: Otodontidae) from the lower Miocene, and comments on the taxonomy of otodontid genera, including the 'megatoothed' clade". Historical Biology. 29 (5): 704–714. doi:10.1080/08912963.2016.1236795. ISSN 0891-2963.
Categories:
- Otodontidae
- Prehistoric marine animals
- Miocene fish of Asia
- Fossils of Japan
- Miocene fish of North America
- Neogene California
- Fossils of North Carolina
- Prehistoric fish of South America
- Miocene animals of South America
- Neogene Peru
- Fossils of Peru
- Fossil taxa described in 2016