Description

Sparganium antiquum
Flower
Early Paleocene
Fort Union Formation
Glendive, Montana, USA

Two floral heads, 24mm and 29mm on 78mm matrix.

Sparganium belongs to the plant order Poales, a group of flowering plants that includes ancient and modern aquatic plants and grasses.

The sediments of the Fort Union Formation were deposited right after the K/T mass extinction and have been the subject of numerous studies comparing faunas and floras before and after the event.