Undulatasporites callosus
- Citations total:
- 1
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| details | Late Jurassic | Early Cretaceous | Europe | Norris,G. Palynologic criteria for recognition of the Jurassic-Cretaceous boundary in Western Europe. (In: Mikrofossilii Drevneishikh Otlozhenii. T.F.Vozzhennikova and T.B.Timofeev, editors) | 1973 |