Clavifera rugata
- Citations total:
- 2
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| details | Berriasian | Albian | USSR(Kazakh SSR) | Fokina,N.I. et al. Palynostratigraphy of the Lower Cretaceous of Central Asia. (In: Life on Ancient Continents: Its Establishment and Expansion.) | 1981 |
| details | Aptian | USSR(Kazakh SSR) | Kruchinina,N.V. et al. Palynostratigraphyof Cretaceous deposits. (In: Practical Palynostratigraphy. L.A. Panova et al, editors) | 1990 |