- Author:
- Waloweek,W.;Norem,W.L.
- Year:
- 1957
- Title:
- Geographic range of Tytthodiscus extended to Alaska.
- Reference:
- Waloweek,W. et al. (1957) Geographic range of Tytthodiscus extended to Alaska. Journal of Paleontology Vol. 31 # 3 P.
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Tytthodiscus | Tytthodiscus californiensis | Alaska | Miocene | |
| Tytthodiscus | Tytthodiscus chondrotus | Alaska | Miocene |