Late Permian

Illwarra Coal Measures

Mudgee, New South Wales, Australia

25mm fruit on 50mm slab

Fruit. Fructification.

Plumsteadia is the genus for a fruiting structure on a glossipterid plant.  It is known from Argentina, Australia, and Antarctica, dating back to a time when those three continents (and in fact all of them) were connected forming the supercontinent, Pangaea.