This Specimen has been sold.
Rare, 10.55" Petrified Seed Fern (Rhexoxylon) Slab - Madagascar
This is something you certainly don't see everyday, it's a slab of petrified seed fern (Rhexoxylon sp.) from Madagascar. Nearly 99% of all petrified material from Ambilobe, Madagascar is of the genus Araucaria, making this a truly unique and rare specimen. The round is 10.55" wide and polished to a mirror like finish on one side. Comes with a display stand.