Carcharodontosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosauru...

Carcharodontosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosauru...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This well preserved tooth is 40 to 34 million years old from the Late Eocene Period. Basilosaurus was first thought to be a reptile but was later i...

This unique sawfish rostral tooth barb is approximately 90 million years old. Onchopristis, or “giant saw”, is a genus of extinct giant sawfish tha...

This unique sawfish rostral tooth barb is approximately 90 million years old. Onchopristis, or “giant saw”, is a genus of extinct giant sawfish tha...

This unique sawfish rostral tooth barb is approximately 90 million years old. Onchopristis, or “giant saw”, is a genus of extinct giant sawfish tha...

This unique sawfish rostral tooth barb is approximately 90 million years old. Onchopristis, or “giant saw”, is a genus of extinct giant sawfish tha...

This unique sawfish rostral tooth barb is approximately 90 million years old. Onchopristis, or “giant saw”, is a genus of extinct giant sawfish tha...

This unique sawfish rostral tooth barb is approximately 90 million years old. Onchopristis, or “giant saw”, is a genus of extinct giant sawfish tha...

This unique sawfish rostral tooth barb is approximately 90 million years old. Onchopristis, or “giant saw”, is a genus of extinct giant sawfish tha...