Browse by
Summary Table
Presenting Author
All Authors
Title
Keywords
Institution
Program/Schedule
Date/Time
Programs
Sessions
Locations
At-A-Glance
or
Search
Home
Login

Abstract Detail


A century of seed ferns: A symposium to celebrate paradigm shifts in the understanding of seed plant

Dunn, Michael T [2], Rothwell, Gar W. [1].

A Century of Seed Ferns: a symposium to celebrate paradigm shifts in the understanding of seed plant evolution.

The year 2004 marks the 100th anniversary of the publication of On the structure of the Palaeozoic seed Lagenostoma lomaxi, with a statement of the evidence upon which it is referred to Lyginodendron by F. W. Oliver and D. H. Scott. This paper validated the concept of seed ferns and revolutionized hypotheses of seed plant evolution. In recognition of this centennial, this half day symposium will discuss our current understanding of seed ferns, and explore the latest concepts on the role of this unique and enigmatic group of plants in the evolution and ecology of vascular plants. Topics include the current state of our knowledge of the phylogeny and morphology of seed ferns, from their origin in the Upper Devonian to their extinction in the Mesozoic, as well as variations of growth architecture exhibited by these plants. In addition the ecological role of seed ferns and novel approaches to seed fern phylogeny will be discussed. The symposium will conclude with hypotheses regarding the relationships of seed ferns to the angiosperms, and a period for summation and general discussion.


1 - Ohio University, Department of Environmental and Plant Biology, Porter Hall, Richland Avenue, Athens, Ohio, 45701-2979, USA
2 - Cameron University, Department of Biological Sciences, Science Complex, Lawton, Oklahoma, 73505, USA

Keywords:
Evolution
Paleozic
seed ferns
phylogeny
Ecology
Paleozoic
morphology.

Presentation Type: Symposium
Session: 25-1
Location: Ballroom 1 (Cliff Lodge)
Date: Tuesday, August 3rd, 2004
Time: 8:00 AM
Abstract ID:155


Copyright © 2000-2004, Botanical Society of America. All rights reserved.
l>