Dunkleosteus not in the dictionary?

Cole and I were working on his Mindmap.  One section looks like:

image

This shows some underwater animals that Cole likes (and some he doesn’t).  One of his favorites is the Dunkleosteus.  We added it, but it came up with a red squiggly line under it.  Like this:

image

Cole asked,

Why does it have that funny line under it?

I asked,

Do you remember why?

He responded,

Because it isn’t in our dictionary?

So we added it.  And I suggest you do to. 

BTW: This post was put together to show Cole how to bring together elements of different applications into a blog post.