Helicoprion - Wikipedia
Helicoprion is an extinct genus of shark-like [1] eugeneodont fish. Almost all fossil specimens are of spirally arranged clusters of the individuals' teeth, called "tooth whorls", which in life were embedded in the lower jaw.
Sawshark - Wikipedia
A sawshark or saw shark is a member of a shark order (Pristiophoriformes / prɪstiˈɒfɒrɪfɔːrmiːz /) bearing a unique long, saw-like rostrum (snout or bill) edged with sharp teeth, which they use to slash and disable their prey.
The Helicoprion Was A Shark With A Buzzsaw In Its Mouth
Terrorizing the seas nearly 300 million years ago, the Helicoprion was a bizarre species of shark that sported one of the craziest sets of teeth in natural history. This unusual feature has been the subject of widespread debate in the scientific community for a century, and it’s easy to see why.
Meet the Prehistoric Shark With a Buzzsaw On Its Face - American …
This fascinating creature swam the prehistoric oceans during the late Carboniferous to the early Permian, about 290 million years ago. The most defining and striking feature of the Helicoprion is undoubtedly its tooth whorl—a spiral arrangement of teeth that resembles a buzz saw.
Sawfish - Wikipedia
Sawfish, also known as carpenter sharks, are a family of rays characterized by a long, narrow, flattened rostrum, or nose extension, lined with sharp transverse teeth, arranged in a way that resembles a saw. They are among the largest fish, with some species reaching lengths of about 7–7.6 m (23–25 ft). [1] .
Helicoprion: The Ancient Shark with a Buzz-Saw Jaw
Helicoprion is an extinct prehistoric shark that lived approximately 290 million years ago. What makes this ancient creature unique is its bizarre, buzz-saw-like jaw. Unlike modern-day sharks that have rows of teeth, Helicoprion had a single spiral …
Helicoprion - The Australian Museum
Helicoprion is an extinct genus of shark-like eugeneodont fish (a group of extinct cartilaginous fishes). Members of Eugenodontida possess a unique morphological feature called “tooth whorls”. They first appeared in the Devonian before going extinct in the Early Triassic.
There was a shark with a circular saw in its mouth: The Helicoprion
Scientists who have investigated this strange animal, believe that it was closely related to Chimaeriformes, chimaeras or ghost sharks, fish whose composition is made of cartilage except for the teeth. From the reconstruction of the jaw, these scientists have been able to clarify other characteristics of these fish.
Helicoprion Shark Facts, Habitat, Diet, Fossils, Tooth-whorl, Pictures
2022年3月26日 · The Helicoprion was a genus of prehistoric shark-like fish best known for their curled-up teeth resembling a circular saw that lived in the oceans all over the world during the early Permian Period. Biologists have very limited knowledge about this creature since only a very limited number of fossils could be discovered till date.
Saw shark | Description & Facts | Britannica
Saw shark, any of about nine species of long-snouted marine sharks in the order Pristiophoriformes. They are characterized by a long, slender, sawlike snout equipped with sharp, toothlike projections on each edge.