Featured product







This is a pair of Otodus obliquus vertebrae from Morocco, still nestled in their natural matrix and presented on a custom display stand. These two fossilized vertebrae were found tightly pressed together, creating a unique mirror-like imprint on each piece. When aligned, they fit together perfectly—like two halves of an ancient puzzle. Otodus obliquus was a massive mackerel shark that dominated the seas during the Paleocene and Eocene epochs, known for its large, triangular teeth and powerful build.
The Otodus , specifically Otodus obliquus, is an extinct species of mackerel that lived approximately during the Paleocene and Eocene epochs, roughly 60 to 40 million years ago. This animal is known for its large size and is one of the early ancestors of the famous Megalodon. Here are some key characteristics and facts about the Otodus shark:
-
Size and Appearance: Otodus obliquus was notably large, with estimates suggesting it could grow up to 30 feet (9.1 meters) in length. It had a robust body and large, triangular teeth with smooth cutting edges. The teeth are often the most common fossils found and are a significant indicator of its size and predatory nature.
-
Teeth and Diet: The teeth of the Otodus shark were large, with some specimens measuring over four inches in length. These teeth were likely used to catch large prey, including fish and possibly marine mammals.
-
Habitat and Range: Otodus obliquus is believed to have inhabited warm, shallow seas. Fossil evidence has been found in various locations around the world, including North America, Europe, Africa, and Asia, indicating a wide geographic range.
-
Evolutionary Significance: Otodus obliquus is an important species in the study of shark evolution. It is considered to be an ancestor of many larger and more famous prehistoric sharks, including the Megalodon (Carcharocles megalodon). Its evolutionary lineage shows the development of large predatory sharks in the Earth's oceans.
-
Fossil Record: The fossil record of Otodus obliquus is primarily composed of its teeth, as shark skeletons are made of cartilage, which does not fossilize as well as bone. These teeth are a common find in certain fossil formations and are popular among collectors.
The study of Otodus obliquus helps scientists understand the early evolution of large predatory sharks and the ecological roles they played in ancient oceans. Its large size and widespread presence make it a notable species in the history of marine life.
Featured product



This juvenile Woolly Rhino jaw features a complete set of teeth, with one still unerupted. It has two small hairline cracks that have been stabilized, and a missing section on the inner side, a result of how it was unearthed. Despite these natural imperfections, it remains a truly beautiful specimen from a young animal.
Stand included
The Woolly Rhino, native to Siberia, was a large, prehistoric mammal that thrived during the Ice Age. Covered in thick, woolly fur and featuring a massive horn on its snout, it was well-adapted to the frigid Siberian environment. Fossils and cave paintings reveal it as a formidable herbivore, using its horn to clear snow and access vegetation. The woolly rhino became extinct around 10,000 years ago, likely due to climate change and human activities.
WELCOME TO
FOSSILS ONLINE
Welcome to Fossils Online. I've been curating fossil specimens, rare shark jaws and quality fossil shark teeth from around the world to share with other fossil enthusiasts since 1998. We pride ourselves in being knowledgeable in all three fields to ensure that you receive accurate descriptions, positive identifications and detailed pictures so you can feel confident that the item you receive will surpass your expectations. As hard as we try to capture every detail, it is impossible to duplicate what you see in person from a photograph. With that said, we know you will be very pleased as all of the items we sell look better in person.
WEEKLY NEW SELECTION
Featured collection







































