The critique of Huber et al. ( 1994-this volume) follows two lines of argument. The first is that Keller (1993) does not confirm Huber's ( 1991 ) earlier study. The second is devoted to criticizing Keller (1993) for not following the revised taxonomy of Olsson et al. (1992), Liu and Olsson (1992) and Olsson and Liu (1993). Huber et al. ( 1994-this volume) do not mention the fact that none of these studies were published at the time the paper they criticize was written (during the fall of 1991). But even if these studies had been known, they would not have influenced the arguments presented by Keller (1993) since none of these publications provides convincing arguments in favor of their proposed taxonomic revisions (for a critique see MacLeod, 1993, in press a,b). In addition, Huber et al. ( 1994-this volume) criticize Keller for not following the Berggren and Miller (1988) Paleogene biozonation.   PDF