Copulation in antiarch placoderms and the origin of gnathostome internal fertilizationLong, John A.; Mark-Kurik, Elga; Johanson, ZerinaNature2015 / p. 196–199, [9] p. ext. data : ill A new genus of ptyctodont (Placodermi) from the Late Devonian of Baltic areaTrinajstic, Kate; Long, John A.; Ivanov, Alexander; Mark-Kurik, ElgaPalaeontologia electronica2019 / art. 22.2.23, 19 p. : ill https://doi.org/10.26879/890 Journal metrics at Scopus Article at Scopus Journal metrics at WOS Article at WOS Taxonomic revision of buchanosteoid placoderms (Arthrodira) from the Early Devonian of south-eastern Australia and Arctic RussiaLong, John A.; Mark-Kurik, Elga; Young, G. C.Australian journal of zoology2014 / p. 26-43 : ill