00897 - Top Rare Fluted 1.50 Inch Mosasaur (Prognathodon anceps) Tooth in Natural Matrix
00897 - Top Rare Fluted 1.50 Inch Mosasaur (Prognathodon anceps) Tooth in Natural Matrix 00897 - Top Rare Fluted 1.50 Inch Mosasaur (Prognathodon anceps) Tooth in Natural Matrix 00897 - Top Rare Fluted 1.50 Inch Mosasaur (Prognathodon anceps) Tooth in Natural Matrix 00897 - Top Rare Fluted 1.50 Inch Mosasaur (Prognathodon anceps) Tooth in Natural Matrix 00897 - Top Rare Fluted 1.50 Inch Mosasaur (Prognathodon anceps) Tooth in Natural Matrix

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00897 - Top Rare Fluted 1.50 Inch Mosasaur (Prognathodon anceps) Tooth in Natural Matrix

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Species
Prognathodon, Dollo 1889 (mosasaur)
Age
Upper Cretaceous, Maastrichtian stage, (~66 Million Years)
Location
Oued Zem, Morocco
Formation
Ouled Abdoun Basin (Phosphate beds)
Size
38.1 mm   •    in
Weight
106 g   •    oz
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Description

This enormous Prognathodon tooth is preserved in its original phosphate matrix. It does not have any restoration or reparation. It has been excavated in one of its laterals in order to show up a bit more from it. The size corresponds to that of an adult individual. The quality of the enamel is very high due to the beautiful range of caramel brilliant hues. It does not have any product or treatment that has altered its original shine and color. 

This tooth has a unique and very rare characteristic. It has a longitudinal groove along one of its edges. It seems to correspond to some type of pathological malformation produced by some type of infection in the animal's mouth.

The tip of the tooth is quite worn-out in a natural way. The feeding wear is a very common trait of the teeth. 

In the international market is very common to find Mosasaurus rests coming from the phosphate quarries of the Upper Cretaceous of the Ouled Abdoun Basin (Morocco). 

This quarries have been exploited since the beginning of the past century. Many sellers that sell this fossils do not make a good precise taxonomic identification work. 

In these sites there are numerous different species of Mosasaurus described in the enormous assemblage of giant marine reptiles that reigned the seas during the Cretaceous. 

The main rich levels in these paleontological taxons are in the deeper stratigraphic levels of the sedimentarian filling of the Ouled Abdoun Basin. The age of these correspond to the Maastrichtian stage, 66 million years ago. 

Most of the research carried out on these marine reptiles from Morocco have been performed by French researchers. 

Next we list the different Mosasaur species which have been recognised in the phosphate rocks in North Africa: 

-Halisaurus aramborgi (Bardet et al., 2005) 
-Halisaurus walkeri (Lingham-Solier, 1998) 
-Prognathodon sp (Dollo, 1889) 
-Prognathodon anceps (Leiodon anceps) 
-Prognathodon solvay (Dollo, 1889) 
-Prognathodon currii (Christiansen & Bonde, 2002) 
-Eremiasaurus heterodontus (LeBlanc et al., 2012)
-Mosasaurus beaugei (Arambourg, 1952) 
-Mosasaurus hoffmanni (Mantell, 1829) 
-Tylosaurus (Marsh, 1872) 
-Platecarpus ptychodon (Arambourg, 1954) 
-Globidens phosphaticus (Bardet et al., 2005) 
-Carinodens belgicus (Bardet et al., 2005)


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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