 In 1995, J. H. Callomon acknowledged their significance.In 1996, Peter Doyle wrote, "Buckman's orginal work involved a high degree of precision in collecting and measurement of stratigraphical sections which demonstrated the potential for the high-resolution scheme he later constructed.Although Buckman's later excesses cast doubt on the accuracy of this work, detailed observations have shown it to be broadly correct and of great importance in long-distance correlation with North America, for example.