| original |
Late Devonian |
|
Pennsylvania |
Arnold,C.A. Observations on fossil plants from the Devonian of eastern North America. IV. Plant remains from the Catskill Delta deposits of northern Pennsylvania and Southern New York. |
1939 |
| details |
Early Pennsylvanian |
|
Michigan |
Arnold,C.A. A Heterosporous species of Bowmanites from the Michigan Coal Basin |
1944 |
| details |
Pennsylvanian |
|
Illinois |
Arnold,C.A. Petrified Cones of the genus Calamostachys from the Carboniferous of Illinois. |
1958 |
| details |
Triassic |
|
Australia(NSW) |
Ash,S.R. Silliostrobus, gen.nov., a new Lycopsid cone from the Early Triassic of Australia. |
1979 |
| details |
Triassic |
|
Australia(NSW) |
Ash,S.R. Silliostrobus, gen.nov., a new Lycopsid cone from the Early Triassic of Australia. |
1979 |
| details |
Triassic |
|
Australia(NSW) |
Ash,S.R. Silliostrobus, gen.nov., a new Lycopsid cone from the Early Triassic of Australia. |
1979 |
| details |
Triassic |
|
Australia(NSW) |
Ash,S.R. Silliostrobus, gen.nov., a new Lycopsid cone from the Early Triassic of Australia. |
1979 |
| details |
Triassic |
|
Australia(NSW) |
Ash,S.R. Silliostrobus, gen.nov., a new Lycopsid cone from the Early Triassic of Australia. |
1979 |
| details |
Triassic |
|
Australia(NSW) |
Ash,S.R. Silliostrobus, gen.nov., a new Lycopsid cone from the Early Triassic of Australia. |
1979 |
| details |
Triassic |
|
Australia(NSW) |
Ash,S.R. Silliostrobus, gen.nov., a new Lycopsid cone from the Early Triassic of Australia. |
1979 |
| details |
Early Carboniferous |
|
Spitsbergen |
Bharadwaj,D.C. On Porostrobus zeilleri, Nathorst, and its spores with remarks on the systematic position of Porostrobus bennholdi, Bode, and the phylogeny of Densosporites, Berry. |
1959 |
| details |
Westphalian |
|
Scotland(Dumfries) |
Chaloner,W.G. A Carboniderous Selaginellites with Densosporites microspores. |
1958 |
| details |
Nd |
|
Nd |
Chaloner,W.G. On the megaspores of four species of Lepidostrobus |
1953 |
| details |
Nd |
|
Nd |
Chaloner,W.G. On the megaspores of four species of Lepidostrobus |
1953 |
| details |
Late Devonian |
|
Pennsylvania |
Cichan,M.A. et al. Ultrastructural studies of in situ, Devonian spores - Protobarinophyton pennsylvanicaum Brauer. |
1984 |
| details |
Permian |
|
Australia(Tasmania) |
Dulhunty,J.A. et al. Notes on microspore types in Tasmanian Permian Co |
1949 |
| details |
Pennsylvanian |
|
Iowa |
Good,C.W. et al. The establishment of Elaterites triferens spores in Calamocarpon insignis microsporangia |
1974 |