Costatascyclus
- Citations total:
- 3
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| details | Pennsylvanian | Kansas | Wilson,L.R. Palynological evidence for age assignment of Basal Cherokee, (Pennsylvanian) Strata in Southern Kansas. (In: Proceedings of the Symposium on Evolutionary Botany and Biostratigraphy) | 1979 | |
| details | Chesterian | Iowa | Urban,J.B. Palynology and the Independence Shale of Iowa. | 1971 | |
| original | Springerian | Oklahoma | Felix,C.J. et al. Palynology of the Springer Formation of southern Oklahoma, USA. | 1967 |