Percent | o | 50 + | | | | 40 + o | o | o | o | 30 + | | oo | o o | 20 + | o | o | o o o o | o oo 10 + o o o ooo | o o o oo oo | o o o o ooo oo | o | F 0 + A B C D E ----------- // -----+---------+---------+---------+----- 1960 1970 1980 1990 Year
Figure 3. Publications indexed under Palynology (not Paleobotany), as a percentage of publications indexed under both terms, in GeoRef.
A = Overall percentage for all years before 1905, B = 1905 to 1914, C = 1915 to 1924, D = 1925 to 1934, E = 1935 to 1944, F = 1945 to 1954. All other points are for one year only. See Table 2.