06766 - Well Preserved 2.30 Inch Eremiasaurus heterodontus (Mosasaur) Rooted Tooth
06766 - Well Preserved 2.30 Inch Eremiasaurus heterodontus (Mosasaur) Rooted Tooth 06766 - Well Preserved 2.30 Inch Eremiasaurus heterodontus (Mosasaur) Rooted Tooth 06766 - Well Preserved 2.30 Inch Eremiasaurus heterodontus (Mosasaur) Rooted Tooth 06766 - Well Preserved 2.30 Inch Eremiasaurus heterodontus (Mosasaur) Rooted Tooth 06766 - Well Preserved 2.30 Inch Eremiasaurus heterodontus (Mosasaur) Rooted Tooth 06766 - Well Preserved 2.30 Inch Eremiasaurus heterodontus (Mosasaur) Rooted Tooth

Pictures and Description © Jurassic Dreams

06766 - Well Preserved 2.30 Inch Eremiasaurus heterodontus (Mosasaur) Rooted Tooth

Sold Out

Learn How To Identify Fossil Fakes with our Free Visual Guide

Species
Eremiasaurus heterodontus, LeBlanc et al. 2012 (mosasaur)
Age
Upper Cretaceous, Maastrichtian stage, (~66 Million Years)
Location
Oued Zem, Morocco
Formation
Ouled Abdoun Basin (Phosphate beds)
Size
58.5 mm   •    in
Weight
251 g   •    oz
Ref.
us on Facebook to get updates on the rarest fossils!
Description

This Eremiasaurus tooth is preserved in exceptional way, inside his own matrix. It has small glued fracture near the tip. Rooted specimen.


To read more about this type of Mosasaur (which was recently described), you can read the following reference from its authors: A. R. H. LeBlanc, M. W. Caldwell, and N. Bardet. 2012. A new mosasaurine from the Maastrichtian (Upper Cretaceous) phosphates of Morocco and its implications for mosasaurine systematics. Journal of Vertebrate Paleontology 32(1):82-104

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

Eremiasaurus heterodontus
SYSTEMATIC PALEONTOLOGY
REPTILIA Linnaeus, 1758
SQUAMATA Oppel, 1811
MOSASAURIDAE Gervais, 1853
MOSASAURINAE Gervais, 1853
EREMIASAURUS, gen. nov.


Etymology—From the Greek eremia (masc., desert) and sauros (masc., lizard), referring to the arid climate in present day Morocco where this marine reptile was recovered.

Publications about:

LeBlanc, A.R.H., Caldwell, M.W. and Bardet, N. 2012. A new mosasaurine from the Maastrichtian (Upper Cretaceous) Phosphates of Morocco and its implications for mosasaurine systematics. Journal of Vertebrate Paleontology 32(1):82-104.

Diagnosis—Apomorphies of taxon: pterygoid teeth become increasingly curved posteriorly; pronounced heterodonty, anterior marginal teeth straight and conical, middle dentition composed of laterally compressed blade-like teeth with anterior and posterior serrated carinae, posterior teeth asymmetrically expanded anteriorly, producing highly convex anterior surfaces in lateral view; tooth enamel surfaces smooth; upper and lower teeth interdigitate tightly in anterior region of the snout, leaving interdental pitting of the bone between adjacent tooth crowns; interdental spaces decrease posteriorly in maxillae and dentaries.

13 teeth on a maxillary 16 teeth on a dentary .

Sources: The Fossil Forum - Moroccan Mosasaurs - General Fossil Discussion

CERTIFICATE OF AUTHENTICITY
This is a unique item. A physical certificate of authenticity will be provided. The certificate, elaborated individually by an expert paleontologist, contains an accurate scientific description and the certificate validity can be verified online at all times. In addition, a 100% money back guarantee is provided. Learn more.

 

We display the Wikipedia text under the Creative Commons Attribution-ShareAlike License


The Only Real Specialist. A Certified Paleontologist in Charge

Many turn their hobby into business, they have an online store or sell in eBay. While that can be commendable, it can’t compare with a real expert, with years of academic formation, supervised field work experience, trained in the art of correct identification, detection of fakes, and a solid network of other accredited paleontologists to consult with.

The key facts are being able to guarantee:
Proper Fossil IDAccurate Scientific DescriptionLifetime Warranty

We do that, and in addition we provide a state-of-the-art uniquely numbered, 24/7 online verifiable, hologram-secured Certificate of Authenticity with all the specimens. It is a lifetime warranty: if new discoveries are made that modify the classification of the specimen or there is any inaccuracy, we will re-issue the certificate. On top of that, a 100% Money Back Guarantee in case you simply change your mind: no questions asked.

Why Jurassic Dreams

 
Featured Categories