Basic features of gymnosperm systematics and phylogeny as evidenced by the fossil record

This publication has 87 references indexed in Scilit:

• The earliest seeds
  Nature, 1981
• Regulatory gene adaptation: An evolutionary model
  Heredity, 1980
• Observations on the Lower Carboniferous genusPitusWitham
  Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 1979
• Phylogénie générale des Calliptéridiacées (Pteridospermopsida)
  Geobios, 1977
• Nucellangium: Gametophytic Structure and Relationship to Cordaites
  Botanical Gazette, 1976
• 15.—Calathopteris heterophyllagen. et sp. nov., a Lower Carboniferous Pteridosperm bearing Two Kinds of Petioles
  Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 1976
• Plant morphology in its nomothetical aspects
  The Botanical Review, 1973
• 4.—On the Structure of a Petrified Stem and some Associated Seeds from the Lower Carboniferous Rocks of East Lothian, Scotland
  Transactions of the Royal Society of Edinburgh, 1973
• Evidence of Pollen Tubes in Paleozoic Pteridosperms
  Science, 1972
• The characters of the fossil plant Gigantopteris Schenk and its occurrence in North America
  Proceedings of the United States National Museum, 1912