Holoptychiidae

Laccognathus Gross, 1941

Selection of related publications
Mark-Kurik, E. 2016. Devonian fish localities in Setomaa. Setomaa I. Loodus, pp. 74-76.
Tuuling, T. 2015. A specimen of Psammolepis in the Gauja Formation (Estonia). bakalaureusetöö, pp. 1-31.
Downs, J. P., Daeschler, E. B. Jenkins, F. A. & Shubin, N. H. 2011. A new species of Laccognathus (Sarcopterygii, Porolepiformes) from the Late Devonian of Ellesmere Island, Nunavut, Canada. Journal of Vertebrate Paleontology 31, 5, 981-996. DOI:10.1080/02724634.2011.599462
Vorobyeva, E. I. 2006. A New Species of Laccognathus (Porolepiform Crossopteygii) from the Devonian of Latvia. Paleontological Journal 40, 3, 313-322. DOI:10.1134/S0031030106030129
Upeniece, I. 2001. The unique fossil assemblage from the Lode Quarry (Upper Devonian, Latvia). Mitt. Mus. Naturkd. Berlin, Geowiss. , 4, 101-119.
Mark-Kurik, E. 2000. The Middle Devonian fishes of the Baltic States (Estonia, Latvia) and Belarus. Cour. Forsch.- Inst. Senckenberg , 223, 309-324.
Vorobyeva, E. I. & Lyarskaya, L. A. 1968. Crossopterygian and dipnoan remains from the Amata beds of Latvia and their burial. Essays on phylogeny and systematics of fossil fishes and agnathans, pp. 71-86.