Cooksonia Primitive Silurian Plant Growing on Eurypterus Sea Scorpion Exoskeleton
Cooksonia sp Primitive vascular plant or (Tracheophyte) and,
Eurypterus remipes, or Sea Scorpion,
Arthropod Subphylum Chelicerata
Geologic Time: Silurian
Fossil Site: Bertie Group, Buffalo, New York
Comments: This association of plant and animal from the Silurian is extremely rare in the fossil record. The early (vascular?) plant, Cooksonia, is associated with an Eurpterus exoskeleton. This species is one of the earliest forms of terrestrial flora, from a time that plants were first evolving features for land-based living. The plant was growing on the discarded molt of a sea scorpion.