- Author:
- Downie,C.
- Year:
- 1967
- Title:
- The geological history of the microplankton.
- Reference:
- Downie,C. (1967) The geological history of the microplankton. Review of Palaeobotany and Palynology Vol. 1 P. 269- 281
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Quadraditum | Quadraditum | Nd | Silurian | |
| Sol | Sol | Nd | Silurian | |
| Sphaeromorphitae | Sphaeromorphitae | Nd | Precambriam | Early Cenozoic |
| Stephanelytron | Stephanelytron | Nd | Late Jurassic | |
| Stephanomorphitae | Stephanomorphitae | Nd | Middle Jurassic | Early Cretaceous |
| Stictosphaeridium | Stictosphaeridium | Nd | Nd | |
| Tasmanites | Tasmanites | Nd | Ordovician | |
| Tetraediella | Tetraediella | Nd | Triassic | |
| Trachyaletes | Trachyaletes | Nd | Nd | |
| Trachydiscina | Trachydiscina | Nd | Nd | |
| Trachyminuscula | Trachyminuscula | Nd | Nd | |
| Trematosphaeridium | Trematosphaeridium | Nd | Nd | |
| Veryhachium | Veryhachium | Nd | Ordovician | Permian |
| Wendiella | Wendiella | Nd | Nd |