Crassulina
- Citations total:
- 3
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| details | Keuper | Rhaetian | USSR(Urals) | Malyavkina,V.S. Upper Triassic, Lower and Middle Jurassic spore and pollen complexes of the western and eastern sides of the Urals. (In: Paleobotanical Symposium) | 1953 |
| details | Jurassic | Cretaceous | USSR | Bolkhovitina,N.A. Criticism and bibliography on the classification of fossil pollen and spores and on the type of atlas for their identificaion. | 1955 |
| original | Early Mesozoic | USSR(Pre-Urals) | Potonie,R. Synopsis of the genera of the sporae dispersae. Part 2 | 1958 |