Vertebrate faunas and correlation of the Ludlovian--Lower Devonian in eastern Europe

Errol White was the first to elaborate an extensive scheme of vertical distribution of vertebrate remains in the Anglo-Welsh Lower Devonian (1950). This was shown later to be valid also in Western Europe (White, 1956; Schmidt, 1959) and comparable with Lower Devonian successions throughout the world (e.g. Denison, 1956; Obruchev, 1958; Friend, 1961). To White's papers we still turn when we wish to correlate any sections of that age with the English type one. Thus it seems appropriate to dedicate a paper in this volume to showing how on the foundation laid down by White a further construction can be built up in the vast area of eastern Europe.