Volcaniclastic silcrete floras in eastern Australia provide new fossil evidence of the fern genus Pteridium (bracken).
Andrew C. Rozefelds (Queensland Museum Network). Pteridium is a cosmopolitan genus occurring in all continents, except Antarctica, and is among the most widespread vascular plant species known; and yet the fossil record world-wide is poor. This is because the fronds disintegrate while they are still on the plant, and the potential for fossilization is therefore limited. At […]