Now, what do we use it for?
After all, that's what it was used for in Kitchen Stadium
Seriously, however, that is a major find, first to have a squid fossil that well preserved. The lack of bones makes it really hard to find anything more than impressions most times. I am amazed the ink was in a state that they could use it. As the article states, the drawing of the animal and its name was written in the very ink they'd drawn out.