Date,Theropods,Sauropodomorphs,Ornithischians
1835,1,0,0
1840,1,1,0
1845,0,1,0
1850,0,1,0
1855,1,3,0
1860,2,0,4
1865,1,1,2
1870,0,3,4
1875,0,3,4
1880,3,7,6
1885,1,2,4
1890,2,1,6
1895,0,4,2
1900,1,1,1
1905,4,3,5
1910,0,0,3
1915,5,4,13
1920,1,3,5
1925,8,3,8
1930,1,3,6
1935,16,3,5
1940,3,5,1
1945,3,1,1
1950,1,1,1
1955,3,4,7
1960,2,0,2
1965,3,1,3
1970,5,1,5
1975,9,5,9
1980,14,6,15
1985,13,12,11
1990,5,9,12
1995,25,12,12
2000,35,25,22
2005,46,36,31
2010,55,54,53
2015,55,42,52