Coniferopsida
| Coniferopsida | ||||||||||||
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Scots pine ( Pinus sylvestris ) |
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| Scientific name | ||||||||||||
| Coniferopsida | ||||||||||||
The Coniferopsida are a class of seed plants . These include the recent conifers and their closely related, but extinct Voltcials . Due to molecular genetic characteristics, the Gnetales are now often placed in this group.
features
The conifers and the Gnetales are morphologically so different that the group has practically no common characteristics.
Systematics
Two recent and one extinct order belong to the class Coniferopsida:
- Conifers (Coniferales)
- Gnetales
- Voltziales , the extinct presumed ancestor of the conifers
The position of the Gnetales within the Coniferopsida is supported by many molecular genetic studies. However, some show them as sister groups to all other recent seed plants. However, cladistic analyzes that include fossil seed plants see them in a clade together with the Bedecktsamern and Bennettitales .
Individual evidence
- ^ A. Bresinsky, Ch. Körner, JW Kadereit, G. Neuhaus, U. Sonnewald: Strasburger - Textbook of Botany . 36th edition, Spektrum Akademischer Verlag, Heidelberg 2008. ISBN 978-3-8274-1455-7
- ^ Thomas N. Taylor, Edith L. Taylor, Michael Krings: Paleobotany. The Biology and Evolution of Fossil Plants . Second Edition, Academic Press 2009, ISBN 978-0-12-373972-8
- ^ Sarah Matthews: Phylogenetic relationships among seed plants: Persistent questions and the limits of molecular data . American Journal of Botany, Volume 96, 2009, pp. 228-236. doi : 10.3732 / ajb.0800178