(General Characteristics of Caytoniales)
What are Caytoniales?
Ø Caytoniales were a small group of extinct Gymnospermic plants.
Ø First described by Hamshaw Thomas in 1925 from the late Triassic period.
Ø Caytonia is a berry-like cupules with numerous small seeds.
Examples of Caytoniales
Ø Leaves: Sagenopteris
Ø Microsporophylls: Caytonanthus
Ø Megasporophylls: Caytonia and Gristhorpia