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 …
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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 ...
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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.
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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.
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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…
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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 dimpled surface, it's more labyrinthine.
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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.
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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 …
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Scientists have found complete fossils from an enormous shark that lived alongside the dinosaurs, with teeth that can crush turtle shells.
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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.
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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.
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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.
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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
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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.
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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 ...
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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.
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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.
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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 …
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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 …
WhatsApp: +86 18221755073
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 …
WhatsApp: +86 18221755073
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...
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Scientists have found complete fossils from an enormous shark that lived alongside the dinosaurs, with teeth that can crush turtle shells.
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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.
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LEFT: The largest crusher shark teeth in the sample were identified as Ptychodus polygyrus. This species was probably the largest of all of the crusher sharks in Kansas but is relatively rare.
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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. Cutting teeth are usually triangular in shape and have serrations, like a steak knife ...
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Museum Quality Shark Teeth 19; Otodus Shark Teeth 56; Belgium 1; Kazakhstan 3; Morocco 40; Pathologic teeth 11; Otodus Vertebrae 6; Paleocarcharodon Shark Teeth 24; Paleozoic Shark Teeth - Russian 69; Paleozoic Sharks Teeth - USA 86; Parotodus benedeni Shark Teeth 56; Tiger Shark Teeth 123; Chile - Tiger shark 2; Florida - Tiger shark 21; Lee ...
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This is a fascinating, .24" 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 …
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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 ...
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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 …
WhatsApp: +86 18221755073
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. There are 3 specimens and they range from 4.5 cm to 7.5 cm long in size.
WhatsApp: +86 18221755073