1 AUTHENTIC SPINOSAUR TOOTH

THIS LISTING IS FOR 1 AUTHENTIC SPINOSAUR TOOTH. YOU WILL RECEIVE ONE OF THE TEETH IN THE PHOTOS. 

Spinosaurus (Spinosaurus aegyptiacus)

Spinosaurus was one of the most unusual and specialized dinosaurs ever discovered. Living about 112–93 million years ago during the mid-Cretaceous period, it is widely considered the largest known carnivorous dinosaur, even longer than Tyrannosaurus rex. Unlike most large theropods, Spinosaurus was highly adapted to a semi-aquatic lifestyle.

Physical Description

• Estimated length: 50–59 feet (15–18 meters)

• Estimated weight: 7–10+ tons

• Posture: Long, low body with relatively short hind legs

• Arms: Long and powerful with large hooked claws

• Tail: Tall, paddle-shaped tail used for swimming

• Sail: A massive sail along its back formed by elongated neural spines, reaching up to 6 feet tall

The sail may have been used for display, thermoregulation, species recognition, or intimidation. Its overall body plan was unlike any other known theropod dinosaur.

Skull & Jaws

• Long, narrow, crocodile-like snout

• Conical teeth rather than blade-like ones

• Nostrils positioned far back on the skull to allow breathing while partially submerged

• Extremely strong jaws, optimized for gripping rather than slicing

Spinosaurus had a skull over 5 feet long, making it one of the longest skulls of any land predator.

Lifestyle & Diet

Spinosaurus is believed to have been primarily piscivorous (fish-eating), though it likely ate other animals opportunistically.

• Main prey: Large fish (including giant sawfish-like species)

• Also consumed: Small dinosaurs, turtles, and aquatic reptiles

• Hunting strategy: Snapping sideways motions to catch slippery prey

Bone density studies show Spinosaurus had dense, heavy bones, reducing buoyancy—another clear adaptation for life in water.

Fossilized Spinosaurus Teeth

Spinosaurus teeth are among the most distinctive dinosaur teeth found and are fairly common due to how frequently they were shed.

Size & Shape

• Length: Typically 1–3 inches (some exceed 4 inches)

• Shape: Straight to slightly curved, conical

• Cross-section: Nearly circular

• Tip: Sharp but not blade-like

Unlike the flattened, serrated teeth of predators like T. rex, Spinosaurus teeth resemble giant crocodile teeth, ideal for gripping fish.

Serrations (or Lack Thereof)

• No serrations

• Smooth enamel surface

• This reduced drag and prevented teeth from breaking when catching hard, slippery prey like fish

Enamel Texture & Color

Tooth coloration depends on fossilization conditions:

• Black or dark brown: Phosphate-rich sediments

• Tan or honey-colored: Sandy desert deposits

• Reddish or orange hues: Iron oxidation

• Glossy surface: Often very well preserved

Many Spinosaurus teeth from North Africa retain a high-polish enamel sheen, making them visually striking fossils.

Root Structure

• Long, tapering root

• Strong anchoring for repeated snapping bites

• Roots are often incomplete due to natural shedding

Abundance & Identification

• Spinosaurus replaced teeth continuously throughout its life

• Thousands of shed teeth have been found, especially in Morocco

• Teeth are often identified by:

  • Smooth enamel

  • Circular cross-section

  • Lack of serrations

  • Subtle vertical fluting on some specimens

Why Spinosaurus Teeth Are Important

• They provide the clearest physical evidence of Spinosaurus feeding behavior

• Teeth confirm its fish-eating specialization

• Because skeletal remains are rare and fragmentary, teeth are crucial for identifying Spinosaurus presence in fossil sites

Spinosaurus teeth are especially popular among fossil collectors because they are:

• Authentic, abundant, and legally collectible in many regions

• Durable and visually distinctive

• Direct remnants of one of the most bizarre predators in Earth’s history