Lycophyte relative: Sawdonia sp. (Cornell Univ.)

Fossil specimens of the early vascular land plant *Sawdonia* sp.; locality unknown, but presumably from the Paleozoic. *Sawdonia* is a zosterophyllophyte, a group of Silurian to Devonian plants related to lycophytes. Zosterophyllophytes lacked true leaves, but can be linked to lycophytes by the presence of lateral sporangia and exarch xylem maturation. Specimen is from the Cornell University Paleobotanical Collection (CUPC), Ithaca, New York (#1698). Length of specimen is approximately 24 cm. Model by Emily Hauf.