Notidanodon loozi

€ 28,00
Notidanodon loozi, Vincent 1876
   SIZE  2.7 cm    •   1.06 inch
AGE                  Upper Paleocene, Thanetian stage, (~56 Million Years)
LOCATION        Oued Zem, Morocco
FORMATION     Ouled Abdoun Basin (Phosphate beds)

This type of shark teeth is one of the most beautiful from the assemblage in the phosphate rocks in the Paleocene of the Oulad Abdoun Basin (Morocco). This tooth has an outstanding preservation. The enamel in each of the cusps has a beautiful beige color. The details of the osseous structure of the root are astonishingly well defined. It has glued or filled fractures.

It is a tooth of the lower jaw of a cow shark. Specifically it is the species Notidanodon loozi (Vincent, 1876). This species belongs to the Hexanchidae family.

It is a quite rare species within the huge shark assemblage present in the phosphates of the lower Paleogene of this region of Morocco. Its structure is very delicate and fragile, and it is worse preserved than the teeth of other more common species.

This species has quite a lot of synonymies (sister taxa): Gladioserratus, Heptranchias, Hexanchus, Notidanoides, Notidanus, Notorhynchus, Notorynchus.

The cow sharks are considered the most primitive ones because they preserve a skeleton anatomy very similar to the ancient and first types of sharks.