Article

Elliott, D.K., Lassiter, L.S. & Blieck, A. 2021. A phylogenetic analysis of the heterostracan jawless vertebrate family Cyathaspididae. Acta Palaeontol. Pol. 66 (3): 631-640. [Online: 6 Sep 2021] ≡

New: Subsequent spelling

†*Pionaspis acuticostata* (Species) Elliott, Lassiter & Blieck, 2021, orth. inval.	Page: fig. 3.
†*Vernonaspis tortucostata* (Species) Elliott, Lassiter & Blieck, 2021, orth. inval.	Page: 637, fig. 3.