while looking at a top 10 list i saw a shark called the Helicoprion se below after a bit of looking i found meany weird sharks so join me as i post the weirdest from the prehistoric sharks gallery and some of the info link here
http://school.discoveryeducation.com/schooladventures/prehistoricsharks/gallery.html but i thought i share my faves from the lot


Helicoprion
It belongs to a group of early sharks whose jaws evolved an elaborate buzz saw-like tooth whorl each one fixed to the tooth in front, forming an ever-growing spiral This structure may have been used to injure or disable prey, which the shark could then eat at leisure.Helicoprionmay have reached lengths over 10 feet


Orthacanthus
the terror of freshwater swamps and bayous in Europe and North America. Its eel-like body reached nearly 10 feet in length and its powerful jaws were lined with double-fanged teeth.


niopteryx
A "plump" mid-size chimaera-like fish,Iniopteryxhad specialized spines and fins indicative of a bottom-dweller.

I dub this one the "penis fish"

http://school.discoveryeducation.com/schooladventures/prehistoricsharks/gallery14.html

ozoneocean
I dub this one the "penis fish"

http://school.discoveryeducation.com/schooladventures/prehistoricsharks/gallery14.html

I was expecting more penis.

I don't know about prehistoric shark, but I love all sorts of deep sea creatures. I was a bit disappointed that we haven't discovered aliens yet, but deep sea creatures more than make up for that. Now I only wish I could dive that deep myself.

ozoneocean
I dub this one the "penis fish"

http://school.discoveryeducation.com/schooladventures/prehistoricsharks/gallery14.html

More like dildo shark.

So now we can have shark snout sex in addition to tentacle rape.

I think every prehistoric environment was incredibly frightening.

And on the subject of Penis Sharks, I believe I have a better one:



Except its still alive, and its actually called a "frill" Shark...

I mean, with sharks like this:



I'm rather surprised anything survived those oceans.