growth position in the fruit. Seeds are also found preserved individually and as groupings or masses of seeds ranging between and . One of the specimens has several hundred seeds grouped closely together and enclosed in a thick matrix, thought to be the preserved jelly like matrix that the seeds first dispersed from the fruit in. Other masses show lesser amounts of matrix, and the ones showing little to no matrix are less grouped together. The individual seeds range between long with an oval to barrel shape and an operculum at one end. Each seed has a distinct raphe ridge running vertically down it from the base to the slightly asymmetrical operculum. While most of the seed coat structure is not preserved enough to identify, the outer cell layer is distinct, showing small pentagon shaped cells with straight walls, a feature seen in fossil and living Nuphar. References External links Nymphaeaceae Ypresian plants of North America Extinct flora of North America † † Paleontology in Washington (state) Paleogene British Columbia Paleontology in British Columbia Klondike Mountain Formation Fossil taxa described in 2015 †