Baculites ("walking stick rock") is an extinct genus of cephalopods with a nearly straight shell, included in the heteromorph ammonites. The genus, which lived worldwide throughout most of the Late Cretaceous, was named by Lamarck in 1799. Weight: 35.3 grams, Dimensions: 1 x .5 x 3.25 inches

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Fossilized psuedomorph of calcite after ammonite halve to reveal the internal chambers lined with calcite crystals. The ammonite has been internally replaced by calcite  with small areas showing its original mother of pearl iridescent outer shell. Its a complete ammonite sliced and polished to expose the internal cavities now lined...

Crinoids, also known as sea lilies, are members of the Echinodermata phylum along with starfish and sea urchins. This Crinoid  fossil is from Morocco. They have the appearance of graceful underwater flowers. They are among the oldest fossils known in the world, dating all the way back to the Ordovician period,...

Crinoids are found in almost every bedrock unit in Indiana, including the famous Indiana Limestone. "Sea Lily" is the common name for crinoids, which are still living in today's oceans. Weight: 1.2 lb, Dimensions: 6.25 x 1 x 3.5 inches

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

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

This beautiful specimen is a giant cluster of pre historic sea scallops in their original matrix. The size of this piece in combination with the quality of these fossilized sea scallops is an incredibly unique find. These sea scallops are from the Upper Minocene Period, approximately 11.6-5.3 million years old....

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

This is a giant preserved tortoise fossil of Stylemys nebracensis. It slowly plodded over the temperate area of South Dakota about 30 million years ago in an area known as the White River Badlands of South Dakota. Oligocene in age. 32.2 lbs, 14 x 10.5 x 6.5 inches 

This unique piece exhibits a fossilized sea starfish in its deep red, natural matrix with a few crinoids present. This piece dates back to the Ordovician period; approximately 488 - 443 million years old.    Weight: 20.2 lbs, Size: 21.5 x 1.75 x 15 inches

A stunning and unique Goniatite Ammonite free-form made out of polished rock containing 400 million year old fossils of Goniatites. These fossils are mined in the Atlas Mountains of Morocco. Each piece is hand carved and hand polished. *Stock photo shown, similar piece will be sent Weight: 66.5 grams, Dimensions:...

A stunning and unique Goniatite Ammonite free-form made out of polished rock containing 400 million year old fossils of Goniatites. These fossils are mined in the Atlas Mountains of Morocco. Each piece is hand carved and hand polished. *Stock photo shown, similar piece will be sent Weight: 3.5 lbs, Dimensions:...

A small, clustered tower of Orthoceras fossils in sea-bed matrix. 250 to 750 million years ago, the orthoceras mollusk lived in abundance during the Paleozoic Era. Orthoceras is a member of the class Cephalopoda and is closely related to the extinct giant Cephalopod and present-day chambered nautilus. Orthoceras ("straight horn")...

A small, clustered tower of Orthoceras fossils in sea-bed matrix. 250 to 750 million years ago, the orthoceras mollusk lived in abundance during the Paleozoic Era. Orthoceras is a member of the class Cephalopoda and is closely related to the extinct giant Cephalopod and present-day chambered nautilus. Orthoceras ("straight horn")...

A small, clustered tower of Orthoceras fossils in sea-bed matrix. 250 to 750 million years ago, the orthoceras mollusk lived in abundance during the Paleozoic Era. Orthoceras is a member of the class Cephalopoda and is closely related to the extinct giant Cephalopod and present-day chambered nautilus. Orthoceras ("straight horn")...

A small, clustered tower of Orthoceras fossils in sea-bed matrix. 250 to 750 million years ago, the orthoceras mollusk lived in abundance during the Paleozoic Era. Orthoceras is a member of the class Cephalopoda and is closely related to the extinct giant Cephalopod and present-day chambered nautilus. Orthoceras ("straight horn")...

A stunning clustered plate of Orthoceras fossils in sea-bed matrix. The orthoceras mollusk lived in abundance during the Paleozoic Era, some 250 to 750 million years ago. Orthoceras is a member of the class Cephalopoda and is closely related to the extinct giant Cephalopod and present-day chambered nautilus. Orthoceras ("straight...

A stunning clustered plate of Orthoceras fossils in sea-bed matrix. The orthoceras mollusk lived in abundance during the Paleozoic Era, some 250 to 750 million years ago. Orthoceras is a member of the class Cephalopoda and is closely related to the extinct giant Cephalopod and present-day chambered nautilus. Orthoceras ("straight...

A large, clustered tower of Orthoceras fossils in sea-bed matrix. 250 to 750 million years ago, the orthoceras mollusk lived in abundance during the Paleozoic Era. Orthoceras is a member of the class Cephalopoda and is closely related to the extinct giant Cephalopod and present-day chambered nautilus. Orthoceras ("straight horn")...

A small, clustered tower of Orthoceras fossils in sea-bed matrix. 250 to 750 million years ago, the orthoceras mollusk lived in abundance during the Paleozoic Era. Orthoceras is a member of the class Cephalopoda and is closely related to the extinct giant Cephalopod and present-day chambered nautilus. Orthoceras ("straight horn")...