| These two genera represent the climax of development of the lycopod family. |
| The great lycopod and cordaite trees of the Carboniferous and Permian were long gone, although smaller lycopods survived. |
| With regard to the environmental condition, many of the examined samples contain a preponderance of ferns and lycopod types, indicative of a maritime climate. |
| The pteridologists concluded it was not a reduced fern, nor a lycopod or other vascular cryptogam. |
| For the last category, we used aligned sequences of the five genes of a lycopod and a bryophyte. |
| Gut contents of Carboniferous arthropods, which include lycopod xylem elements and spores, are a tangible demonstration of phytophagy. |
