- Author:
- Downie,C.
- Year:
- 1973
- Title:
- Observations on the nature of the acritarchs
- Reference:
- Downie,C. (1973) Observations on the nature of the acritarchs Palaeontology Vol. 16 # 2 P. 239- 259
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Poikilofusa | Poikilofusa sp | England | Tremadocian | |
| Veryhachium | Veryhachium sp | England | Tremadocian | |
| Acanthodiacrodium | Acanthodiacrodium sp | England | Tremadocian | |
| Cymatiogalea | Cymatiogalea sp | England | Tremadocian | |
| Bacisphaeridium | Bacisphaeridium sp | England | Caradocian | |
| Domasia | Domasia sp | England | Silurian | |
| Visbysphaera | Visbysphaera sp | England | Silurian | |
| Cymatiogalea | Cymatiogalea sp | England | Silurian | |
| Sphaeromorphitae | Sphaeromorphitae | England | Precambriam | Tertiary |
| Leiofusa | Leiofusa | England | Late Cambrian | Early Permian |
| Dinoflagellate | Dinoflagellate | England | Late Gothlandian | Tertiary |
| Retisphaeridium | Retisphaeridium | Nd | Early Cambrian | |
| Impluviculus | Impluviculus | Nd | Early Cambrian | |
| Polygonium | Polygonium | Nd | Early Cambrian | |
| Arbusculidium | Arbusculidium | Nd | Early Cambrian | |
| Ooidium | Ooidium | Nd | Cambrian | |
| Lunulidia | Lunulidia | Nd | Late Cambrian |