...so the third conjugation died out in the turbulent period of Late Antiquity, amid invasions and dislocations. Funnily enough, it did not die off before its nominative plural endings invaded the first conjugation.
Sorry if my remark came off as somewhat snarky, it's just that I've always looked at the third conjugation with some awe, as something just a bit exotic and therefore more interesting.
ἀλλ' ἔγωγε ἐξ αὐτῶν τούτων μᾶλλον αὐτὸν τεθαύμακα, ὅτι ἔν τε ἀλλοκότοις καὶ ἐν ἐξαισίοις πράγμασι αὐτός τε διεγένετο καὶ τὴν ἀρχὴν διεσώσατο. Dio LXXII 36.3