Acanthodii

Haplacanthus Agassiz, 1845

Selection of related publications
Lyarskaya, L. A. 1978. Rezekne Formation and its age analogues. Stratigraphy of the Baltic Phanerozoic, pp. 22-39.
Lyarskaya, L. A. 1975. New data on acanthodii of the Middle Devonian of the Baltic. The Fauna and Stratigraphy of Paleozoic and Mesozoic of Baltic and Byelorussia, pp. 227-232.
Gross, W. 1940. Acanthodier und Placodermen aus den Heterostius-Schichten Estlands und Lettlands. Tartu Ülikooli juures oleva Loodusuurijate Seltsi Aruanded 46, 12-99.
References based on distribution