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In 2020, Cooper and his colleagues reconstructed a 2D model of megalodon based on the dimensions of all the extant lamnid sharks and suggested that a 16 meters (52 ft) long megalodon would have had a 4.65 m (15.3 ft) long head, 1.41 m (4 ft 8 in) tall gill slits, a 1.62 m (5 ft 4 in) tall dorsal fin, 3.08 m (10 ft 1 in) long pectoral fins, and ...
Like contemporaneous sharks, at least two species of Otodus (O. angustidens and O. megalodon) made use of nursery areas to birth their young in, specifically warm-water coastal environments with large amounts of food and protection from predators. [14] [10] A possible reproduction area of O. obliquus has been discovered in the Ganntour basin ...
Otodontidae is an extinct family of sharks belonging to the order Lamniformes.Its members have been described as megatoothed sharks. [1] [2] They lived from the Early Cretaceous to the Pliocene, and included genera such as Otodus, including the giant megalodon. [3]
Otodus appendiculatus Agassiz, 1843 Otodus latus Agassiz, 1843 Otodus basalis Stoliczka, 1873 Lamna (Otodus) appendiculata Zittel, 1895 Lamna borealis Priem, 1897 Lamna (Otodus) appendicularis Toula, 1900 Odontaspis gigas Dalinkevicus, 1935 Lamna lata Gyen, 1937 Plicatolamna arcuata Edwards, 1976 Cretolamna appendiculata var. pachyrhiza Herman ...
Members of the group include macropredators, generally of medium-large size, including the largest macropredatory shark ever, the extinct Otodus megalodon, as well as large planktivores. [ 2 ] Although some authors have argued that the Late Jurassic Palaeocarcharias should be considered the oldest known lamniform, this is disputed.
The authors note, however, that the fact that Megalolamna and Otodus are related is not without problems, because there is a gap in appearance of about 43 million years each. This phylogenetic positioning then requires more in-depth research on Paleogene sharks as well as in the synapomorphies definable in the different genera of otodontids. [ 1 ]
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Otodus chubutensis, [1] meaning "ear-shaped tooth of Chubut", from Ancient Greek ὠτ (ōt, meaning "ear") and ὀδούς (odoús, meaning "tooth") – thus, "ear-shaped tooth", is an extinct species of prehistoric megatoothed sharks in the genus Otodus, that lived during Oligocene, Miocene, and Pliocene, in ~28–5.3 milions years ago. [2]