Numerical analysis of The Fossil Record
John L. Cutbill, Brian Michael Funnell · Geological Society London Special Publications · 1967
Summary A numerical analysis has been carried out based on the ranges of taxa as shown in Part II of The Fossil Record . The numbers of first occurrences, last occurrences and totals have been calculated for groups of related taxa for each stratigraphical sub-division. Relative and net changes across all sub-division boundaries have also been calculated. Results for selected groupings are presented in the form of combined histograms and graphs. Smoothing techniques have been applied to some results, and some other numerical measures calculated.