What is "walchia"

Walchia is a fossil conifer, cypress-like genus of Upper Pennsylvanian ( Carboniferous) and lower Permian (about 310-290 Mya). It is found in Europe; also North America. A forest of in-situ Walchia tree-stumps is located on the Northumberland Strait coast at Brule, Nova Scotia.

Besides the Walchia forest, fallen tree trunks, and leaflet impressions, the forest, fossil-rich layer contains numerous, 4-legged, tetrapod fossil trackways.