Leiosaccus umbonatus
- Citations total:
- 2
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| original | Early Triassic | USSR(Kazakh SSR) | Zauer,V.V. Pollen of Mesozoic Conifers-Protoabietipites Mal. Minutisaccus Madl., Leiosaccus Saur gen.nov. (In: Questions of Phytostratigraphy. S.R.Samoilovich et al, editors) | 1977 | |
| details | Early Triassic | USSR | Boersma,M. et al. Triassic palynomorphs, index to genera and species | 1987 |