Agnatha

Tesseraspis Wills, 1935

Selection of related publications
Novitskaya L. I. 2004. Subclass Heterostraci. Fossil vertebrates of Russia and adjacent countries. Agnathans and early fisches. The reference book for palaeontologists and geologists, pp. 69-207.
Karatajūtė-Talimaa, V. N. 1983. Early Devonian heterostracans of Severnaya Zemlya and their importance for correlations. Problemy sovremennoj paleoichtiologii, pp. 22-28.
References based on distribution