Eoraptor

I had a project that unfortunately it's a bit in a hiatus, but it's called It Will Rain for a Million Years.

It's a role playing game in which you play an Eoraptor Lunensis during the Carnian Pluvial event.

It's something that happened 232 million years ago.

Um, where it rained for 2 million years.

The lower down into the formation, the earlier it is.

So animals like Herrerasaurus and Eoraptor, those were good suggestions of what would be the earliest.

But now, with the discovery of Nyasasaurus, I believe that that may be legitimately the first dinosaur that we know of so far.

Good question.