At the bottom of http://schema.org/docs/schemas.html there's a link to Primitive Data Types (http://schema.org/DataType) which leads to en empty page.
The spec for these data types are not included in the "full" json spec either. Looking for info.

Thanks for the nudge. This is my fault, we made some modeling changes which broke the navigation. I'll get it fixed up asap...

any updates on fixing this one?

/cc @RichardWallis

Thanks!