Mid Devonian | image = Pituriaspida.jpg | regnum = Animalia | phylum = Chordata | subphylum = Vertebrata | classis = Pituriaspida | subdivision_ranks = Species | subdivision = †Pituriaspis doylei †Neeyambaspis enigmatica }} The Pituriaspida ("Pituri Shield") are a small group of armored jawless fishes with tremendous nose-like rostrums, which lived in the marine, deltaic environments of Middle Devonian Australia (about 390 Ma). They're known only by two species, Pituriaspis doylei a… (More on Pituriaspida)