Corinopteris sp. with Mariopteris sp. and Eusphenopteris cf. foliata.
Palm sized slab of grey shale. One surface plastered with three different types of seed fern as well as a Cordaites stem. Nice detail under magnification. Interesting association.
Upper Carboniferous, Westphalian.
Pas de Calais, France.
Specimen : 16 x 10.5 x 2.3 cm.