Figures 5a and 5b: Palaeolithic data entries: the initial distribution of possibly Palaeolithic points was dominated by spurious entries. Once the latter were weeded out, the accurate 'possible' distribution was far sparser (5a), closely resembling that of the 'provably Palaeolithic' entries (5b).
| Yorkshire Location Map | a. Palaeolithic All | b. Palaeolithic Only |