Skip to content Skip to navigation

Article: A new conifer genus from the Lower Cretaceous Glen Rose Formation, Texas

Publication: Palaeontology
Volume: 27
Part: 4
Publication Date: December 1984
Page(s): 719 727
Author(s): Joan Watson and Helen L. Fisher
DOI:
Addition Information

How to Cite

WATSON, J., FISHER, H. L. 1984. A new conifer genus from the Lower Cretaceous Glen Rose Formation, Texas. Palaeontology27, 4, 719–727.

Online Version Hosted By

The Palaeontological Association (Free Access)

Abstract

A new genus, Glenrosa, is erected to include two species of fossil conifer shoots, G. texensis (Fontaine) comb. nov. (the type species) and G. pagiophylloides (Fontaine) comb. nov. which are found interspersed with conifer species belonging to the family Cheirolepidiaceae. The stomatal arrangement of the new genus, which is similar to that of the extant angiosperm Nerium oleander L. of the Apocynaceae but unlike any other gymnosperm, shows extreme xeromorphy and is probably an adaptation to an arid environment.
PalAss Go! URL: http://go.palass.org/49x | Twitter: Share on Twitter | Facebook: Share on Facebook | Google+: Share on Google+