Allosaurus Fragilis jurassic age : 145-201 Million Years Old, Morrison Formation ColoradoThe first big meat-eating predator discovered in the Morrison Formation, predates Tyrannosaurus rex.   341.3 grams, 16 x 2 x 1 inches

Mastodon Tooth and Roots, Pleistocene Epoch 2.6 million years old. Tulsa, Oklahoma   Mastodons were large elephant-like mammals that lived 33 million years ago until 10,000 years ago. Mastodon fossils have been found on every continent except Antarctica and Australia. Although not closely related, mastodons were similar in appearance to mammoth...

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of very sudden underwater landslides called turbidite sequences, which ravaged the early earth when the continents were still very much on the move. The contorted body positions of...

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of very sudden underwater landslides called turbidite sequences, which ravaged the early earth when the continents were still very much on the move. The contorted body positions of...

Museum quality, Oligocene age Oreodont Skeleton from Blue Formation Pennington County, South Dakota, USA  Oreodonts are fossil mammals and are one of the most common fossils found in the Badlands. Oreodonts lived from the Middle Eocene through the end of the Miocene (from about 40 million to 5 million years...

Museum quality, 30 million years old, Oligocene age Oreodont Skeleton from Blue Formation Pennington County, South Dakota, USA  Oreodonts are fossil mammals and are one of the most common fossils found in the Badlands. Oreodonts lived from the Middle Eocene through the end of the Miocene (from about 40 million...

Mastodon Tooth and Roots, Pleistocene Epoch 2.6 million years old. Tulsa, Oklahoma Mastodons were large elephant-like mammals that lived 33 million years ago until 10,000 years ago. Mastodon fossils have been found on every continent except Antarctica and Australia. Although not closely related, mastodons were similar in appearance to mammoth species,...

Mastodon Tooth and Roots, Pleistocene Epoch 2.6 million years old. Tulsa, Oklahoma Mastodons were large elephant-like mammals that lived 33 million years ago until 10,000 years ago. Mastodon fossils have been found on every continent except Antarctica and Australia. Although not closely related, mastodons were similar in appearance to mammoth species,...

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 identified as a genus of ancient cetaceans. Unlike modern cetaceans, basilosaurus had various types of teeth in its mouth, and was able to...

From Tegana Formation, North Africa Cretaceous Age 65 million years Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosaurs, with various scientists proposing length estimates ranging between 12 and 13 m (39-43.5 ft) and weight estimates between 6 and 15 metric tons.This tooth is from a large Carcharodontosaurus...

Carcharodontosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosaurs, with various scientists proposing length estimates ranging between 12 and 13 m (39-43.5 ft) and weight estimates between 6 and 15...

Mastodon Tooth and Roots, Pleistocene Epoch 2.6 million years old. Tulsa, Oklahoma Mastodons were large elephant-like mammals that lived 33 million years ago until 10,000 years ago. Mastodon fossils have been found on every continent except Antarctica and Australia. Although not closely related, mastodons were similar in appearance to mammoth species,...

Spinosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosaurs, with various scientists proposing length estimates ranging between 12 and 13 m (39-43.5 ft) and weight estimates between 6 and 15...

Pyritized Ammonite From Moscow, Russia    A slice of a fossilized pseudomorphic ammonite that has been replaced molecule by molecule by metallic pyrite with iridescent luster on the outer surfaces with exposed chambers that are now lined with metallic pyrite crystals.  9 lbs, 12 x 12 x 1.5 inches

Pyritized Ammonite From Moscow, Russia    A slice of a fossilized pseudomorphic ammonite that has been replaced molecule by molecule by metallic pyrite with iridescent luster on the outer surfaces with exposed chambers that are now lined with metallic pyrite crystals.  9 lbs, 12 x 12 x 1.5 inches

Pyritized Ammonite From Moscow, Russia    A slice of a fossilized pseudomorphic ammonite that has been replaced molecule by molecule by metallic pyrite with iridescent luster on the outer surfaces with exposed chambers that are now lined with metallic pyrite crystals.  9 lbs, 12 x 12 x 1.5 inches

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 identified as a genus of ancient cetaceans. Unlike modern cetaceans, basilosaurus had various types of teeth in its mouth, and was able to...

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 identified as a genus of ancient cetaceans. Unlike modern cetaceans, basilosaurus had various types of teeth in its mouth, and was able to...

Genuine Eurypterus (Sea Scorpion) Upper Silurian 420 million years ago fiddler Green Formation Langs Quarry Herkimer County, New York USA Weight: 5 lb, Dimensions: 7.25 x 1 x 8.5 inches

Carcharodontosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosaurs, with various scientists proposing length estimates ranging between 12 and 13 m (39-43.5 ft) and weight estimates between 6 and 15...

From Moscow, Russia      A slice of a fossilized pseudomorphic ammonite that has been replaced molecule by molecule by metallic pyrite with iridescent luster on the outer surfaces with exposed chambers that are now lined with metallic pyrite crystals.    6 lbs, 10 x 9.5 x 1.5 inches

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of very sudden underwater landslides called turbidite sequences, which ravaged the early earth when the continents were still very much on the move. The contorted body positions of...

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of very sudden underwater landslides called turbidite sequences, which ravaged the early earth when the continents were still very much on the move. The contorted body positions of...

Genuine Spinosaurus (Dinosaur) tooth. Spinosaurus (meaning "spine lizard") is a genus of theropod dinosaur that lived in what now is North Africa, during the upper Albian to upper Turonian stages of the Cretaceous period, about 112 to 93.5 million years ago. This genus was known first from Egyptian remains discovered in...

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 identified as a genus of ancient cetaceans. Unlike modern cetaceans, basilosaurus had various types of teeth in its mouth, and was able to...

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of very sudden underwater landslides called turbidite sequences, which ravaged the early earth when the continents were still very much on the move. The contorted body positions of...

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 identified as a genus of ancient cetaceans. Unlike modern cetaceans, basilosaurus had various types of teeth in its mouth, and was able to...

Megalodon was an prehistoric shark that may have been 40 feet (12m) long or more. (There are a few scientists who estimate it could have been up to 50 to 100 feet long -15.5 to 31m long) This is at least two or three times as long as the Great White...

Genuine Arthropod (Crustacean) Lobster from Java, Indonesia.  Pliocene/ Miocene Age, 5 million years old. Weight: 1 lb, Dimensions: 11 x 3 x 3 inches

From: Two Medicine Formation, Teton County, Montana Albertosaurus is a genus of tyrannosaurid theropod dinosaurs that lived in western North America during the Late Cretaceous Period, about 70 million years ago.   23.3 grams, Display measure: 3.5 x 1 x 4.75 inches

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 identified as a genus of ancient cetaceans. Unlike modern cetaceans, basilosaurus had various types of teeth in its mouth, and was able to...

Trilobites, an early arthropod relative of spiders, horseshoe crabs, and scorpions, preserved in this level of detail only occurred as a result of very sudden underwater landslides called turbidite sequences, which ravaged the early earth when the continents were still very much on the move. The contorted body positions of...

Museum-quality, fossilized and calcified ammonite shell with an iridescent, opalized shimmer displaying hints of vibrant red. The fossilized shells of Ammonites are typically spiral-shaped, very much like that of the Nautilus. However, around 170 million years ago, these squid-like creatures began to build their shells in exotic, highly variable shapes....

Spinosaurus (meaning "spine lizard") is a genus of theropod dinosaur that lived in what now is North Africa, during the upper Albian to upper Turonian stages of the Cretaceous period, about 112 to 93.5 million years ago. This genus was known first from Egyptian remains discovered in 1912 and described...

Carcharodontosaurus (Dinosaur) tooth in a glass display box From Tegana Formation, North Africa. Cretaceous Age 65 million years Carcharodontosaurus is one of the longest and heaviest known carnivorous dinosaurs, with various scientists proposing length estimates ranging between 12 and 13 m (39-43.5 ft) and weight estimates between 6 and 15...

Beautiful hand polished petrified wood slice from Madagascar. It has an amazing, organic pattern with hues of brown, gray, and black. Fossilized Petrified Wood, which is also known as Agatized Wood, forms when a tree has died and silicon dioxide forms in place of the wood that degrades until there...

Spinosaurus (meaning "spine lizard") is a genus of theropod dinosaur that lived in what now is North Africa, during the upper Albian to upper Turonian stages of the Cretaceous period, about 112 to 93.5 million years ago. This genus was known first from Egyptian remains discovered in 1912 and described...