| details |
Carboniferous |
|
Nd |
Bharadwaj,D.C. et al. Suggestions for a morphological classification of sporae dispersae. |
1968 |
| details |
Westphalian A |
|
Nd |
Potonie,R. The phylogeny of the spore shape in regard to families of fossil plants (except the angiosperms). |
1961 |
| details |
Nd |
|
Nd |
Pant,D.D. Population explosion in palaeopalynology. (In: Symposium onstructure, nomenclature and classification of pollen andres) |
1974 |
| details |
Nd |
|
Nd |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Nd |
|
Nd |
Pant,D.D. Suggestions for the classification and nomenclature of fossil spores and pollen grains |
1954 |
| details |
Desmoinesian |
|
Kansas |
Leisman,G.A. A Spencerites sporangium and associated spores from Kansas. |
1962 |
| details |
Kohlen Kalk |
|
Germany |
Kubart,B. Untersuchungen uber die flora des ostrau karweiner kohlenbeckens.I. die spora von spencerites membranaceous n.sp. |
1910 |
| details |
Late Carboniferous |
|
England(Yorkshire) |
Potonie,R. Synopsis of the genera of the sporae dispersae. Part 2 |
1958 |
| details |
Nd |
|
England(Yorkshire) |
Potonie,R. Fossil sporae in situ. Comparison with the sporae dispersae. Addition to the synopsis of the sporae in situ. |
1965 |
| details |
Westphalian |
|
England(Yorkshire) |
Boureau,E. et al. Paleobotanical Treatise. 2. Bryophyta, Psilophyta, Lycophyta. |
1968 |
| details |
Westphalian A |
|
England |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |