| details |
Westphalian |
|
England |
Potonie,R. Synopsis of the Sporae in situ. |
1962 |
| details |
Westphalian |
|
England |
Potonie,R. Fossil sporae in situ. Comparison with the sporae dispersae. Addition to the synopsis of the sporae in situ. |
1965 |
| details |
Westphalian B |
|
England(Yorkshire) |
Brousmiche,C. Precision on the spores produced by some Sphenopterid ferns pertaining to genera Boweria, Kidston, Crossotheca zeiller, Disiopteris stur, Myriotheca zeiller and Urnatopteris kidston. |
1986 |
| details |
Carboniferous |
|
France |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |
| details |
Carboniferous |
|
England |
Balme,B.E. Fossil in situ, spores and pollen grains: An annotated catalogue. |
1995 |