Seed fern: Dicroidium sp. (Cornell Univ.)

Description

Leaf of the fossil seed fern (pteridosperm) *Dicroidium* from the Triassic of Argentina. *Dicrodium* is a foliage type assigned to the Mesozoic seed fern order Corystospermales. Specimen is from the Cornell University Paleobotanical Collection (CUPC), Ithaca, New York (#2012). Length of rock is approximately 14 cm. Model by Emily Hauf. 14 cm