Robert Howard Denison, « The Cyathaspididae; a family of Silurian and Devonian jawless vertebrates », Fieldiana: Geology, vol. 13, , p. 428 (lire en ligne)
Lundgren Mette et Blom Henning, « Phylogenetic patterns in the heterostracan families Cyathaspidae, Ariaspidae and Ctenaspidae », DIVA, , p. 16–17 (lire en ligne)
(en) David Meredith Seares Watson, « A Consideration of Ostracoderms », Phil. Trans. R. Soc. Lond. B, vol. 238, no 652, , p. 1–25 (ISSN0080-4622, DOI10.1098/rstb.1954.0004)
Robert R. Ilyes, Yoshihide Ohta et Jonny Guddingsmo, « The Downtonian and Devonian vertebrates of Spitsbergen. *. New Heterostracans from the Lower Devonian Red Bay Group, northern Spitsbergen », Polar Research, vol. 14, no 1, , p. 33–42 (DOI10.3402/polar.v14i1.6649, S2CID129455869)
(en) Robert R. Ilyes, Yoshihide Ohta et Jonny Guddingsmo, « The Downtonian and Devonian vertebrates of Spitsbergen. *. New Heterostracans from the Lower Devonian Red Bay Group, northern Spitsbergen », Polar Research, vol. 14, no 1, , p. 33–42 (ISSN1751-8369, DOI10.3402/polar.v14i1.6649)
(en) David Meredith Seares Watson, « A Consideration of Ostracoderms », Phil. Trans. R. Soc. Lond. B, vol. 238, no 652, , p. 1–25 (ISSN0080-4622, DOI10.1098/rstb.1954.0004)
(en) Robert R. Ilyes, Yoshihide Ohta et Jonny Guddingsmo, « The Downtonian and Devonian vertebrates of Spitsbergen. *. New Heterostracans from the Lower Devonian Red Bay Group, northern Spitsbergen », Polar Research, vol. 14, no 1, , p. 33–42 (ISSN1751-8369, DOI10.3402/polar.v14i1.6649)
Robert R. Ilyes, Yoshihide Ohta et Jonny Guddingsmo, « The Downtonian and Devonian vertebrates of Spitsbergen. *. New Heterostracans from the Lower Devonian Red Bay Group, northern Spitsbergen », Polar Research, vol. 14, no 1, , p. 33–42 (DOI10.3402/polar.v14i1.6649, S2CID129455869)