I'd like to mark up a bit of a web page displaying info about a PhD thesis. I see in the Schema.org vocabulary, after clicking "Core plus all extension vocabularies", that there's a type
Thesis defined in the Bibliographic Extension (bib).
I now face a choice between using
Thesis from the extension, or something less accurate from the core, e.g.
CreativeWork, or maybe (slightly incorrectly),
My main goal is to make mainstream search engines understand my content. In particular, my goal is NOT to be discoverable by some specialized academic SE that perhaps has extra support for such an extension.
Can I use
Thesis or will that mean nothing to Google and other general-purpose SEs?