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MeargleSchmeargl

Helicoprion's mystery jaws

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MeargleSchmeargl

Helicoprion's bottom jaw is easily the most bizarre of all sharks. With a bottom jaw shaped like a circular saw, just how did this shark kill/eat prey? Did its bottom jaw lash out to inflict debilitating flesh wounds, or did it do something else?

 

 

Helicoprion.jpg

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Darktooth

I think this shark lashed its jaw out to tickle its prey into submission.:ighappy:

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Auspex

The 'fiddlehead' interpretation is but one of many this mystery shark presents.

I have wondered whether the 'coil' mightn't have been an early attempt at a tooth conveyor belt, performing the same function as today's files and rows?
In that speculation, the coil would have been proximal in the jaw.

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Fossildude19

Blast from the past! ;) 

 

 

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*THEO*
7 minutes ago, Al Dente said:

CT scans of fossils have revealed how the tooth whorl fits into the jaw. Here's a picture from "Jaws for a spiral-tooth whorl: CT images reveal novel adaptation and phylogeny in fossil Helicoprion". Also, its not a shark. Its related to Chimaeras.

helic.JPG

This will probably ruin the childhood of someone:D

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WhodamanHD
5 hours ago, MeargleSchmeargl said:

Helicoprion's bottom jaw is easily the most bizarre of all sharks.

Hey! Edestus has a funky jaw too! Actually, almost all Eugeneodontids do.

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Jeffrey P

I was at the Museum of the Earth last September and they had an entire exhibit on Helicoprion with fossil specimens, diagrams and a model. 

IMG_5762.JPG

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oldtimer

Interesting that I did not see this thread before I posted the fossil pic this morning. Mine came from the History Museum in Salt Lake. They had very little information about it though.

This is a very weird shark and speculation on how they worked. As with most sharks very little of the body is in the fossil record.

 

20180226_152244.jpg.c2a29ee0bbfa1dbec48c0adfdadef1b2.jpg

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