| 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 |
| 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 |