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This specimen is a complete crown and partial root of a Spinosaurus tooth.
The specimen is enclosed in a handsome, glass-topped riker box case. A small information card is also included. Style of the image used on the front of the card may also vary.
Spinosaurus Tooth Sizes:
Above: Example Spinosaurus Teeth by Size: Large (2.25" and up), Medium (1.75" to 2.25"), Small (1" to 1.75").
As you might expect, Spinosaurus teeth vary in size, width, and color. For convenience we've grouped teeth into similar sizes by length and "visual weight" in order to assign then to categories:
- Small - 1" to 1.75" (approximately 2.5cm to 4.5cm)
- Medium - 1.75" to 2.25" (approximately 4.5cm to 5.5cm)
- Large - 2.25" (approximately 5.5 cm) and up
Small and Medium Spinosaurus Teeth ship in a glass-topped riker box case measuring 4 1/2" x 3 1/2". The Large Spinosaurus Tooth ships in a 6 1/2" x 5 1/2" glass-topped riker box case.
Please note: All teeth will show some sign of repair. In addition, to protect the specimen during transit every Spinosaurus tooth individually wrapped.
On receipt, simply open the top of the case and unwrap the tooth and then arrange the tooth inside the case as pictured here on the site. We also recommend placing the bubble wrap under the soft, white lining of the case. This extra padding will keep the tooth snug in the case after the lid is secured.
Topping out at just over 18m long (59ft), Spinosaurus is one of the largest carnivorous dinosaurs ever discovered. This family of giant theropods also happens to be among the most surprising creatures in the fossil record.
Nearly everything about Spinosaurus defies traditional thoughts about carnivorous dinosaurs. To begin, Spinosaurids are the only known family of semi-aquatic dinosaurs. They also had long, narrow skulls, almost crocodile-like in appearance, and their jaws were lined with conical teeth instead of the curved, blade-like ziphodont teeth of most theropods.
Of course, Spinosaurus also had elongated neural spines forming a massive dorsal sail.
Above: Spinosaurus Tooth pictured with a massive neural spine.
In some species, the spines in the namesake sail measure more than 2 meters in length, providing the framework for an impressive structure that would rise high above the water. The shape and function of this spine sail has been a hotly debated topic.
Above: Spinosaurus swimming 3D render via Ibrahim, Nizar, et al. "Semiaquatic Adaptations in a Giant Predatory Dinosaur." Science 345.6204 (2014): 1613-1616.
Some theories suggest that the sail wasn't a sail at all but a "fatty-hump". However, a detailed reconstruction in 2014 concludes that the spines were too poorly vascularized to support such a structure and concludes that the spines were likely covered by skin and used for display. The same study also suggests that its limbs were somewhat shorter than previously thought, and appear to be specifically adapted to paddle-swimming like early whales.
This specimen comes from the Kem Kem Beds in Morocco. During the Cretaceous Period, this region was part of a vast river system. In recent years members of the Spinosaurus family have been found in many parts of the world including Europe, South America, and even Australia.
Above: Incredible patterns and detail in mineralization of Spinosaurus teeth.