- Author:
- Duxbury,S.
- Year:
- 1977
- Title:
- A palynostratigraphy of the Berriasian to Barremian of the Speeton Clay of Speeton, England.
- Reference:
- Duxbury,S. (1977) A palynostratigraphy of the Berriasian to Barremian of the Speeton Clay of Speeton, England. Pal¤eontographica Abteilung B Vol. 160 # 1 P. 17- 67
- Google Academy:
- try to search by title in english
| Genus | Species | Country(Region) | From | To |
|---|---|---|---|---|
| Discorsia | Discorsia | England(Yorkshire) | Early Barremian | |
| Speetonia | Speetonia | England(Yorkshire) | Early Valanginian | |
| Spiniferites | Spiniferites ramosus | England(Yorkshire) | Hauterivian | Barremian |
| Cyclonephelium | Cyclonephelium tabulatum | England(Yorkshire) | Barremian | |
| Oligosphaeridium | Oligosphaeridium nannus | England(Yorkshire) | Valanginian | Barremian |
| Gonyaulax | Gonyaulax serrata | England(Yorkshire) | Hauterivian | Barremian |
| Meiourogonyaulax | Meiourogonyaulax stoveri | England(Yorkshire) | Hauterivian | |
| Spore | Spore forma 3 sp. nov. | England(Yorkshire) | Berriasian | |
| Hystrichosphaera | Hystrichosphaera ramosa | England(Yorkshire) | Hauterivian | Barremian |
| Hystrichosphaera | Hystrichosphaera ramosa | England(Yorkshire) | Valanginian | Barremian |
| Hystrichosphaera | Hystrichosphaera ramosa | England(Yorkshire) | Hauterivian | Barremian |
| Adnatosphaeridium | Adnatosphaeridium vetusculum | England(Yorkshire) | Hauterivian | Barremian |
| Trichodinium | Trichodinium ciliatum | England(Yorkshire) | Valanginian | Barremian |
| Muderongia | Muderongia tetracantha | England(Yorkshire) | Valanginian | Hauterivian |
| Alaskadinium | Alaskadinium | England(Yorkshire) | Valanginian | Early Hauterivian |
| Alaskadinium | Alaskadinium wigginsii sp. nov. | England(Yorkshire) | Valanginian | Early Hauterivian |
| Discorsia | Discorsia nannus | England(Yorkshire) | Early Barremian |