A new antiarch species Microbrachius kedoae n. sp. is described from the Middle Devonian (Givetian) of Belarus. The species is based on isolated dermal plates recovered from a borehole near the village of Gavrilchitsy about 25 km southwest of the city of Soligorsk. Microbrachius kedoae compares well to the type species Microbrachius dicki from Scotland, but differs from this and all other Microbrachius species in the mixilateral plate being overlapped by the anterior median dorsal plate. The presence of Microbrachius species of the same age in Scotland and Belarus strengthens the argument of faunal connections between the two areas in the Middle Devonian.
Burrow, C. J., den Blaauwen, J. L., Newman, M. J. & Davidson, R. G. 2016. The diplacanthid fishes (Acanthodii, Diplacanthiformes, Diplacanthidae) from the Middle Devonian of Scotland. Palaeontologica Electronica, 19, 1–83.
Duff, P. 1842. Geology of Moray. Forsyth and Young, Elgin, 72 pp.
Gross, W. 1965. Über die Placodermen-Gattungen Asterolepis und Tiaraspis aus dem Devon Belgiens und einen fraglichen Tiaraspis-rest aus dem Devon Spitzbergens. Institut Royal des Sciences Naturelles de Belgique, Bulletin, 41, 1–19.
Hemmings, S. K. 1978. The Old Red Sandstone antiarchs of Scotland: Pterichthyodes and Microbrachius. Palaeontographical Society Monographs, Publication, 131, 1–64.
Kruchek, S. A., Matveyev, A. V., Yakubovskaya, T. V., Naidenkov, I. V., Veretennikov, N. V., Obukhovskaya, T. G., Sanko, A. F. & Plax, D. P. (eds). 2010. Stratigraphic Charts of Precambrian and Phanerozoic Deposits of Belarus: Explanatory Notes. Belarusian Research Geological Exploration Institute, Minsk, 282 pp. [in Belarusian, with English introduction].
Long, J. A., Mark-Kurik, E., Johanson, Z., Lee, M. S. Y., Young, G. C., Zhu, M., Ahlberg, P. E., Newman, M., Jones, R., den Blaauwen, J., Choo, B. & Trinajstic, K. 2015. Copulation in antiarch placoderms and the origin of gnathostome internal fertilization. Nature, 517, 196–199.
Lukševičs, E. 2001. Bothriolepid antiarchs (Vertebrata, Placodermi) from the Devonian of the north-western part of the East European Platform. Geodiversitas, 23, 489–609.
Mark-Kurik, E. 2000. The Middle Devonian fishes of the Baltic States (Estonia, Latvia) and Belarus. Courier Forschungsinstitut Senckenberg, 223, 309–324.
Mark-Kurik, E. & Põldvere, A. 2012. Devonian stratigraphy in Estonia: current state and problems. Estonian Journal of Earth Sciences, 61, 33–47.
Miles, R. S. 1968. The Old Red Sandstone antiarchs of Scotland: Family Bothriolepididae. Palaeontographical Society Monographs, Publication, 122, 1–130.
Pan, J. 1984. A new species of Microbrachius from the Middle Devonian of Yunnan. Vertebrata PalAsiatica, 22, 8–13 [in Chinese, with English summary].
Peach, C. W. 1868. On fossil fishes of the Old Red Sandstone of Caithness and Sutherland, with notices of some new to those counties. Report of the Thirty-Seventh Meeting of the British Association for the Advancement of Science Held at Dundee in September 1867, Transaction of Sections, Geology, 72.
Plax, D. P. 2008a. Devonian fish fauna of Belarus. Lithosphere, 2(29), 66–92 [in Russian, with Belarusian and English summaries].
Plax, D. P. 2008b. Introduction of vertebrate zonal scales into the stratigraphic chart of Devonian deposits of Belarus. Reports of the National Academy of Sciences of Belarus, 52, 83–88 [in Belarusian, with English summary].
Qiao T., King, B., Long, J. A., Ahlberg, P. E. & Zhu, M. 2016. Early gnathostome phylogeny revisited: multiple method consensus. PLoS ONE, 11, 1–23.
Traquair, R. H. 1888. Notes on the nomenclature of the fishes of the Old Red Sandstone of Great Britain. Geological Magazine, 5, 507–517.
Traquair, R. H. 1894–1914. A monograph of the fishes of the Old Red Sandstone of Britain. Part 2. The Asterolepidae. Palaeontographical Society Monographs, 48, 63–134.
Wang, J.-Q. & Zang, G. R. 1999. New material of Microbrachius from Lower Devonian of Qujing, Yunnan, China. Vertebrata PalAsiatica, 37, 200–211 [in Chinese, with English summary].
Watson, D. M. S. 1935. Fossil fishes of the Orcadian Old Red Sandstone. In The Geology of the Orkneys (Wilson, G. V., Edwards, W., Knox, J., Jones, R. C. B. & Stephens, S. J. V., eds), pp. 157–169. Memoirs of the Geological Survey, Scotland, HMSO, Edinburgh.
Young, G. C. 1988. Antiarchs (Placoderm fishes) from the Devonian Aztec Siltstone, Southern Victoria Land, Antarctica. Palaeontographica, 202(A), 1–125.