Procephalaspididae Stensiö, 1958

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. DOI:10.1671/0272-4634(2006)26[235:EUOEV]2.0.CO;2
Afanassieva, O. B. 2004. Subclass Osteostraci. 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.