- 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 |
|---|---|---|---|---|
| Pavlovskya | Pavlovskya | Nd | Nd | |
| Pediastrum | Pediastrum | Nd | Eocene | |
| Peteinosphaeridium | Peteinosphaeridium | Nd | Ordovician | |
| Platymorphitae | Platymorphitae | Nd | Late Cretaceous | Early Cenozoic |
| Poikilofusa | Poikilofusa | Nd | Ordovician | |
| Polyedryxium | Polyedryxium | Nd | Silurian | Devonian |
| Polygonomorphitae | Polygonomorphitae | Nd | Late Cambrian | Cenozoic |
| Prismatomorphitae | Prismatomorphitae | Nd | Devonian | |
| Protoarchaeosacculina | Protoarchaeosacculina | Nd | Nd | |
| Protoleiosphaeridium | Protoleiosphaeridium | Nd | Nd | |
| Protoleiosphaeridium | Protoleiosphaeridium | Nd | Silurian | |
| Protoleiosphaeridium | Protoleiosphaeridium conglutinatum | Nd | Cambrian | |
| Prototrematosphaeridium | Prototrematosphaeridium | Nd | Nd | |
| Pteromorphitae | Pteromorphitae | Nd | Silurian | Cenozoic |
| Pterosperma | Pterosperma | Nd | Eocene | |
| Pterospermopsis | Pterospermopsis | Nd | Silurian | Cenozoic |
| Pulvinosphaeridium | Pulvinosphaeridium | Nd | Silurian |