00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix
00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix 00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix 00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix 00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix 00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix 00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix 00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix 00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix 00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix

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00422 - Sharp Well Preserved 2.64 Inch Otodus obliquus Shark Tooth in Natural Matrix

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Species
Otodus obliquus, Agassiz 1843 (mackerel shark)
Age
Upper Paleocene, Thanetian stage, (~56 Million Years)
Location
Oued Zem, Morocco
Formation
Ouled Abdoun Basin (Phosphate beds)
Size
67 mm   •    in
Weight
144 g   •    oz
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Description

This tooth belongs to a great shark of the genus Otudus, a species quite abundant in the phosphate quarries of the Ouled Abdoun Basin, in Morocco. Most of the teeth of this species which are sold by dealers usually have fake roots which have been made-up with a filler paste. This specimen is perfectly preserved in its natural matrix. The size exceeds that of the average. The natural shine of the enamel is stunning.
The root is completely authentic. The lateral denticles can be perfectly observed. The details of the anatomy of the superficial osseous structure of the root are extremely well preserved.

This tooth is very well preserved, from the sharp tip until the root (which is still partially buried under the sediment). It does not have any type of restoration. It has a reparation --a glued fracture between a sector of the matrix and the tooth (it was fractured during the digging). Without doubt this is a perfect example of the dentition of fearsome Otudus obliquus. One of the lateral denticles can be perfectly seen. The other one is still under the rock. A preparation of this piece could make the rest of the tooth show up from under the rock. The rock can be easily removed with a meticulous work with a micro-jack-hammer.

Matrix dimensions: 102 x 70 x 23 mm (4.0 x 2.8 x 0.9 in)
Size of the tooth: 67 mm (2.64 in)

Otudus is a genus belonging to the shark group known as mackerel sharks. It reigned the seas during the Paleocene and the Eocene (60-45 million years ago). It is a quite dominant species in the phosphate quarries in this sector of Morocco. This species has only been described via its teeth and vertebrae. As all the Elasmobranchii, the skeleton has a cartilaginous non-osseous nature, what makes difficult its fossilization process. . The teeth of this shark are large with a triangular crown, smooth cutting edges, and visible cusps on the roots.

The fossils of this huge shark indicate that it must have been an incredible marine macro-predator. Its length has been estimated between 9 and 12 m (30-40 ft).

The Ouled Abdoun Basin (or Khouribga Basin), located in the central sector of Morocco, is an enormous sedimentarian basin represented mostly by a vast filling of phosphate sediments. Apart from having a relevant raw material to be extracted, it has a series of very important paleontological sites in which amazing assemblages from big and small marine vertebrates are present. The basin has a so great continuity in its stratigraphic record that both the Upper Cretaceous as well as the two first epochs of the Paleogene (Paleocene and Eocene) can be studied.

The main assemblage of vertebrate fossils of the Paleogene sector present there is composed by sharks, fish, turtles, marine snakes, rays, crocodiles, other types of reptiles and even marine birds. In the Cretaceous part we can add Mosasaurs, Pterosaurs and Plesiosaurs.

Next you can visit a link with very interesting information about this sedimentarian basin rich in fossil vertebrates: Ouled Abdoun Basin

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