Crusher Shark Teeth

Giant prehistoric shark discovered with 'grinding' …

Scientists have found complete fossils from an enormous shark that lived alongside the dinosaurs, with teeth that can crush turtle shells.

Fossil of an ancient shark that swam in the age of dinosaurs …

The existence of mackerel sharks with crushing teeth was unknown until now, Amadori said. "There is still much more to discover, but we can say that we have taken another important step forward ...

Fossilguy: Types of Shark Fossils: Parts of Sharks that …

Because sharks are made of cartilage and not bone, it's a common misconception that teeth are the only parts that fossilize. Although shark teeth are by far the most common fossils, many other parts of sharks fossilize. Other parts that can fossilize are the areas of denser cartilage, such as the centers of the vertebra, jaw cartilag…

Fossilguy: Types of Shark Fossils: Parts of Sharks that …

Shark teeth can be categorized into three general shapes: crushing, grasping, and cutting. Crushing teeth are short and round. These are designed for crushing mollusk shells and crustaceans. Grasping teeth are long and pointy; ideal for grasping fleshy fish.

Exquisite fossils of Cretaceous shark solve mystery …

This left researchers unsure about the shark's overall appearance and feeding habits, although the broad, flat shape of the teeth suggests they were suited to crushing hard-shelled prey.

Sharks of Kansas

Right: A variety of shark teeth collected one week later from the same locality as above. This collection includes a crusher shark tooth (Ptychodus anonymus). Left: Detail of center tooth in bottom row above. This tooth is only weakly serrated and does not have the typical serrated edge found on most Squalicorax teeth.

Cretaceous Atlas of Ancient Life | Ptychodontidae

Common Name: 'Shell crusher' Extant/ Extinct. Key morphological features: The Ptychodontidae include the largest shark of the Late Cretaceous WIS; Ptychodus mortoni. These sharks were …

My Pennsylvanian Shark Teeth

Next is a partial holocephalian crusher tooth. I don't have an ID for this one, although it does have a distinctive pattern on the lower portion of the tooth, unlike the normal …

'Shell crusher' shark swam Cretaceous Kansas

His team identified a portion of a right upper jaw, 19 teeth and multiple oral and dermal scales for the shark, now housed at the Sternberg Museum. The scientists originally found the remains...

.21" Fossil Crusher Shark (Ptychodus) Tooth

This is a fascinating, .21" wide tooth from a Crusher Shark (Ptychodus sp.) a genus of shell-crushing sharks from the Late Cretaceous period. Paleontologists believe these crusher sharks grew to be about 4-5 meters long. Given their teeth, we can assume they probably crushed and ate large shelled animals such as giant clams and ammonites.

Cretaceous Atlas of Ancient Life | Ptychodontidae

Common Name: 'Shell crusher' Extant/ Extinct. Key morphological features: The Ptychodontidae include the largest shark of the Late Cretaceous WIS; Ptychodus mortoni. These sharks were durophagous (shell-crushing predators) having plates with rows of domed shell-crushing teeth.

'Shell Crusher' shark swam ancient oceans › News in Science …

Related Stories. Great white sharks had humble beginnings, Science Online, 16 Mar 2009; T. rex was no match for Big Tooth, Science Online, 18 Sep 2009; Humans have a bit of shark in them, Science ...

Fossilguy: Types of Shark Fossils: Parts of Sharks that …

Big Crusher Shark Teeth?

Giant prehistoric shark discovered with 'grinding' teeth that …

Scientists have found complete fossils from an enormous shark that lived alongside the dinosaurs, with teeth that can crush turtle shells.

Chomatodus sp

Crusher Shark tooth. Click on picture to Magnify Chomatodus sp. General abundance: Rare. Viewer Comments: The tooth appears to be something on the order of Campodus. There's an awful lot of variation of what you get on Campodus depending on the position in the mouth the tooth occupied. I did quite a bit of work with these about 20 years ago. The

Exquisite fossils of Cretaceous shark solve mystery of how it …

This left researchers unsure about the shark's overall appearance and feeding habits, although the broad, flat shape of the teeth suggests they were suited to crushing hard-shelled prey.

Ptychodus Crusher Shark Tooth #37 | Fossils for Sale

Ptychodus Crusher Shark Tooth. Ptychodus anonymus. – Shell-Crusher Shark; Cretaceous Age; Kemp Formation; Near Neylandville, Texas; This Ptychodus Shark Tooth measures .47″ wide. The specimen will come in a 1.25″ Gem Jar. MORE Fossil Sharkteeth for Sale; Ptychodus was one of the more unique sharks of the Cretaceous oceans. Instead of ...

Huge, 1.17" Fossil Crusher Shark (Ptychodus) Tooth

This is a fascinating, 1.17" wide tooth from a Crusher Shark (Ptychodus polygyrus) a genus of shell-crushing sharks from the Late Cretaceous period. Teeth from this shark are extremely rare, especially crushers of this immense size and impeccable preservation. Paleontologists conjecture that these crusher sharks grew to be about 4-5 meters long.

The Ptychodontid Sharks

Ptychodus is a genus of durophagous (shell-crushing) sharks from the Late Cretaceous. Their teeth have been n collected on all continents, including Australia, but occur most often in the sediments deposited in the Western Interior Sea of North America. They became extinct during the Santonian, about 85 million years ago.

Deltodus sp

Shark/Fish tooth. Mississippian Salem Formation St. Louis County, Missouri . ... The old Illinois Geological Survey Vol. VII, 1883 is a thick volume on the crusher teeth. This is a bradyodont, probably more like a ratfish ancestor than a shark. I collected many of these teeth in the old Biggsville, Illinois quarry back in the early 1990's.

.49" Fossil Crusher Shark (Ptychodus) Tooth

This is a fascinating, .49" wide tooth from a Crusher Shark (Ptychodus sp.) a genus of shell-crushing sharks from the Late Cretaceous period. Paleontologists believe these crusher sharks grew to be about 4-5 meters long. Given their …

Big Crusher Shark Teeth?

I am looking for some info on these three crusher shark teeth that I have. They were unidentified and without provenance when I acquired them, but based on the other material in the collection they were from they might be from the Pennsylvanian of Texas.

Big Crusher Shark Teeth?

.29" Fossil Crusher Shark (Ptychodus) Tooth

This is a fascinating, .29" wide tooth from a Crusher Shark (Ptychodus sp.) a genus of shell-crushing sharks from the Late Cretaceous period. Paleontologists believe these crusher sharks grew to be about 4-5 meters long. Given their …

Shark Teeth for Sale

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