Cycads: Evidence from the Upper Pennsylvanian
- 18 April 1969
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 164 (3877) , 294-295
- https://doi.org/10.1126/science.164.3877.294
Abstract
The fossil record of true cycads is extended from the Upper Triassic to the upper PennsYlvanian.Keywords
This publication has 1 reference indexed in Scilit:
- Studies in fossil botany /Published by Smithsonian Institution ,1909