| original |
Miocene |
|
California |
Norem,W.L. Tytthodiscus, a new microfossil genus from the California Tertiary. |
1955 |
| details |
Miocene |
|
California |
Salard,M. et al. The presence of the genera Tytthodiscus, Norem,1955 in Cameroon (Africa) and Chile (South America). |
1975 |
| details |
Miocene |
|
California |
Eisenack,A. et al. Catalog of fossil dinoflagellates, hystrichospheres and related microfossils. Acritarchs. |
1976 |
| details |
Miocene |
|
Alaska |
Waloweek,W. et al. Geographic range of Tytthodiscus extended to Alaska. |
1957 |