| Author (and author names) | Published between | No. of references | No. of described taxa (valid) |
|---|---|---|---|
| Touyama, Y. | 1994–2010 | 11 | – |
| Townes, H.; Townes, H. K. | 1951 | 2 | – |
| Toyota, A. | 2020 | 1 | – |
| Tozetto, L. | 2020–2022 | 2 | 1 |
| Trager, J. C.; Trager, J. | 1984–2018 | 24 | 20 |
| Trager, M. D. | 2007 | 1 | – |
| Trainor, C. R. | 2010 | 1 | – |
| Tran, L. A. P. | 2014 | 1 | – |
| Traniello, J. F. A. | 1978–2011 | 18 | – |
| Tratnik, A. | 2014 | 1 | – |
| Trautmann, W. | 1984 | 1 | – |
| Trautwein, M. D. | 2013 | 1 | – |
| Travan, J. | 1990 | 1 | – |
| Trenkle, S. | 1995–1997 | 2 | – |
| Trichas, A. | 2018–2020 | 2 | 7 |
| Trietsch, C. | 2021 | 1 | – |
| Trindl, A. | 2005–2023 | 3 | 1 |
| Triplehorn, D. M. | 2008 | 1 | – |
| Trivers, R. L. | 1976 | 1 | – |
| Tröger, D. | 2024 | 1 | – |
| Trojan, P. | 1994 | 1 | – |
| Trontti, K. | 2003–2011 | 3 | – |
| Troppmair, H. | 1979 | 1 | – |
| Trostle, M. R. | 1993 | 1 | – |
| Troya, A. | 2022–2023 | 3 | 4 |
| Trunzer, B. | 1997 | 1 | – |
| Tryon, E. H., Jr. | 1986 | 1 | – |
| Tryon, H. | 1886–1900 | 2 | – |
| Tsai, W.-H. | 2018 | 1 | 1 |
| Tschá, M. K. | 2009 | 1 | – |
| Tschinkel, W. R. | 1987–1999 | 5 | – |
| Tschirnaus, M. | 2001 | 1 | – |
| Tse, C. Y. L. | 2024 | 2 | – |
| Tseng, S.-P. | 2024 | 1 | – |
| Tshiguvho, T. E. | 1999 | 1 | – |
| Tsuji, K. | 1991–2011 | 15 | – |
| Tsuji, N. | 1994–1996 | 2 | – |
| Tsukii, Y. | 1995–2003 | 5 | – |
| Tsutsui, N. D. | 1999–2011 | 8 | – |
| Tsyubik, M. M. | 1988–1990 | 2 | – |
| Tu, A. T. | 1984 | 1 | – |
| Tu, N.-C. | 1974 | 1 | – |
| Tuff, D. W. | 1975 | 1 | – |
| Tukia, H. | 1991–1996 | 2 | – |
| Tulloch, G. S. | 1929–1963 | 11 | – |
| Tunstead, J. R. | 1994 | 1 | – |
| Turnbull, C. L.; Turnbull, C. | 1984–1986 | 3 | – |
| Turner, C. R. | 1998–2024 | 3 | – |
| Turner, G. | 1897 | 1 | – |
| Turner, V. | 1997 | 1 | – |
| Tutt, J. W. | 1905 | 1 | – |
| Tynes, J. S. | 1964 | 1 | – |
| Übler, E. | 1995–1997 | 3 | – |
| Uchida, T. | 1925–1936 | 3 | 1 |
| Udayakantha, W. S. | 2020–2021 | 2 | 2 |
| Uezu, K. | 1976 | 1 | – |
| Ugawa, Y. | 1995–2003 | 5 | – |
| Ugelvig, L. V. | 2008 | 1 | – |
| Uhey, D. | 2020 | 1 | 1 |
| Ullah, S. | 2019 | 1 | – |