A new assessment of the Late Devonian antiarchan fish Bothriolepis leptocheira from South Timan (Russia) and the biotic crisis near the Frasnian-Famennian boundary Author Lukševičs, Ervīns Author Beznosov, Pavel Author Stūris, Valdemārs text Acta Palaeontologica Polonica 2017 2017-02-20 62 1 97 119 http://dx.doi.org/10.4202/app.00265.2016 journal article 10.4202/app.00265.2016 1732-2421 10980819 Genus Bothriolepis Eichwald, 1840 Type species : Bothriolepis ornata Eichwald, 1840 ; Priksha River , Novgorod region , Russia ; the upper Famennian Lnyanka Formation . Diagnosis .— Bothriolepididae in which the AMD plate is broadest across its lateral corners, and normally overlaps the ADL and is overlapped by the MxL plate. The MxL plate is broadest through its dorsal corner, with its lateral lamina of similar extent to the lateral lamina of the ADL plate, and not forming extensive contact with the AVL plate.