Tyrsopteris elegans
- Citations total:
- 2
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| details | Early Oligocene | Colombia | de Porta,J. et al. Discussion of the age of the Hoyon, Gualanday and Cira Formations in the Region of Honda-San Juan de Rio Seco, (Magdelena Valley). | 1963 | |
| details | Oligocene | Colombia | de Porta,J. Stratigraphic Lexicon. Colombia:(Part Two). Tertiary and Quaternary. | 1974 |