Kraken!

Or, as I prefer to think of it- giant, ancient Cuttlefish! The actual Cthulu monster!

 

So I realize that there’s a lot of speculation in this. But I am in love with the idea that an ancient Coleoidea was killing ichthyosaurs and dragging them to its lair. It just brings out the fan girl in me.

And there is good science involved. The evidence at this time is mostly circumstantial, but since soft bodied creatures do not leave fossils, we are pretty much forced to speculate about their past existence. I hope to hear more evidence of the kraken soon.