en.wiktionary.org/wiki/lucubro#Latin I think he conflated the Latin 'lucubro' for 'lucubrate' for whatever reason. Maybe it's a joke, as he doesn't know that what he's doing is 'lucubrating' haha
@KitZ.Fox No, no, not premise. You're thinking of ... well, because you had one of these, you knew what I was going to say you were thinking of before I said it.
@MετάEd no no not what @KitZ.Fox just said, you're thinking of shells, but not the rest. prehistoric shells of animals that became extinct during the permian-triassic event. and not trilobytes.