Alethopteris cf. lonchitica Sternberg 1826.
Beautifully preserved 3D seed fern frond on dark grey shale. Shows numerous paired pinnules. Lovely detail under magnification. From the famous old locality of Kilmersdon, Radstock. Found 1983.
Carboniferous, Westphalian D, Farrington Formation.
Kimersdon Colliery Tip, Radstock, Somerset.
Fern : 9 cm long.
