Category:Species described in the 20th century

• Species described in 1901‎ (5 C, 3 P)
• Species described in 1902‎ (5 C)
• Species described in 1903‎ (5 C)
• Species described in 1904‎ (5 C, 4 P)
• Species described in 1905‎ (5 C, 5 P)
• Species described in 1906‎ (5 C)
• Species described in 1907‎ (5 C, 6 P)
• Species described in 1908‎ (5 C, 4 P)
• Species described in 1909‎ (5 C)
• Species described in 1910‎ (5 C, 2 P)
• Species described in 1911‎ (5 C, 3 P)
• Species described in 1912‎ (5 C, 4 P)
• Species described in 1913‎ (5 C)
• Species described in 1914‎ (5 C, 2 P)
• Species described in 1915‎ (5 C)
• Species described in 1916‎ (5 C)
• Species described in 1917‎ (5 C)
• Species described in 1918‎ (5 C)
• Species described in 1919‎ (4 C, 1 P)
• Species described in 1920‎ (5 C, 2 P)
• Species described in 1921‎ (5 C)
• Species described in 1922‎ (5 C)
• Species described in 1923‎ (5 C)
• Species described in 1924‎ (5 C, 2 P)
• Species described in 1925‎ (5 C, 2 P)
• Species described in 1926‎ (5 C, 1 P)
• Species described in 1927‎ (5 C, 4 P)
• Species described in 1928‎ (5 C)
• Species described in 1929‎ (5 C)
• Species described in 1930‎ (5 C, 2 P)
• Species described in 1931‎ (5 C, 3 P)
• Species described in 1932‎ (5 C)
• Species described in 1933‎ (5 C)
• Species described in 1934‎ (5 C, 2 P)
• Species described in 1935‎ (5 C)
• Species described in 1936‎ (4 C, 1 P)
• Species described in 1937‎ (5 C, 2 P)
• Species described in 1938‎ (5 C, 2 P)
• Species described in 1939‎ (5 C, 2 P)
• Species described in 1940‎ (6 C)
• Species described in 1941‎ (5 C)
• Species described in 1942‎ (5 C)
• Species described in 1943‎ (4 C, 4 P)
• Species described in 1944‎ (5 C, 1 P)
• Species described in 1945‎ (4 C, 2 P)
• Species described in 1946‎ (4 C, 1 P)
• Species described in 1947‎ (4 C, 1 P)
• Species described in 1948‎ (4 C, 3 P)
• Species described in 1949‎ (5 C)
• Species described in 1950‎ (4 C, 1 P)
• Species described in 1951‎ (5 C)
• Species described in 1952‎ (5 C, 2 P)
• Species described in 1953‎ (5 C)
• Species described in 1954‎ (5 C)
• Species described in 1955‎ (4 C)
• Species described in 1956‎ (5 C)
• Species described in 1957‎ (5 C, 4 P)
• Species described in 1958‎ (5 C, 1 P)
• Species described in 1959‎ (4 C, 1 P)
• Species described in 1960‎ (5 C)
• Species described in 1961‎ (5 C)
• Species described in 1962‎ (4 C, 1 P)
• Species described in 1963‎ (5 C, 2 P)
• Species described in 1964‎ (4 C, 2 P)
• Species described in 1965‎ (5 C)
• Species described in 1966‎ (5 C, 1 P)
• Species described in 1967‎ (5 C)
• Species described in 1968‎ (5 C, 2 P)
• Species described in 1969‎ (5 C, 1 P)
• Species described in 1970‎ (6 C)
• Species described in 1971‎ (5 C, 1 P)
• Species described in 1972‎ (6 C, 1 P)
• Species described in 1973‎ (5 C, 2 P)
• Species described in 1974‎ (5 C)
• Species described in 1975‎ (6 C)
• Species described in 1976‎ (5 C, 6 P)
• Species described in 1977‎ (5 C)
• Species described in 1978‎ (4 C, 5 P)
• Species described in 1979‎ (5 C)
• Species described in 1980‎ (6 C)
• Species described in 1981‎ (6 C)
• Species described in 1982‎ (6 C, 3 P)
• Species described in 1983‎ (6 C)
• Species described in 1984‎ (6 C, 1 P)
• Species described in 1985‎ (5 C, 4 P)
• Species described in 1986‎ (5 C, 3 P)
• Species described in 1987‎ (5 C, 2 P)
• Species described in 1988‎ (6 C, 5 P)
• Species described in 1989‎ (6 C, 5 P)
• Species described in 1990‎ (6 C, 1 P)
• Species described in 1991‎ (5 C, 2 P)
• Species described in 1992‎ (6 C, 1 P)
• Species described in 1993‎ (6 C, 4 P)
• Species described in 1994‎ (6 C)
• Species described in 1995‎ (6 C, 1 P)
• Species described in 1996‎ (5 C, 1 P)
• Species described in 1997‎ (6 C)
• Species described in 1998‎ (6 C, 2 P)
• Species described in 1999‎ (6 C)
• Species described in 2000‎ (6 C, 1 P)

A

• Animals described in the 20th century‎ (112 C)
• Archaea described in the 20th century‎ (25 C)

B

• Bacteria described in the 20th century‎ (100 C)

F

• Fungi described in the 20th century‎ (101 C, 1 P)

P

• Plants described in the 20th century‎ (100 C)
• Protists described in the 20th century‎ (82 C)

V

• Viruses described in the 20th century‎ (22 C)