Agnatha

Procephalaspis Denison, 1951

Selection of related publications
Märss, T., Afanassieva, O. & Blom, H. 2014. Biodiversity of the Silurian osteostracans of the East Baltic. Transactions of the Royal Society of Edinburgh Earth Sciences 105, 2, 73-148. DOI:10.1017/S1755691014000218
Märss, T. 2006. Exoskeletal ultrasculpture of early vertebrates. Journal of Vertebrate Paleontology 26, 2, 235-252.
Afanassieva, O. B. 2004. Subclass Osteostraci. Osteostracans. Agnathans and Early Fishes, pp. 210-267.
Afanassieva, O. B. & Märss, T. 1997. Exoskeleton Structure and the Distribution of Aestiaspis viitaensis (Agnatha) from the Silurian of Estonia. Paleontologicheski Zhurnal , 6, 75-80.
References based on distribution