Utrechtiaceae
Appearance
Utrechtiaceae | |
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Fossil of Utrechtia piniformis | |
Scientific classification ![]() | |
Kingdom: | Plantae |
Clade: | Tracheophytes |
Clade: | Gymnospermae |
Division: | Pinophyta |
Class: | Pinopsida |
Order: | †Voltziales |
Family: | †Utrechtiaceae Mapes & G. W. Rothwell |
Utrechtiaceae is an extinct family of trees related to modern conifers.[1] This family dates back to the late Carboniferous and Early Permian.[2]
Description
[edit]They were forest trees with almost horizontal standing leafy lateral shoots and with vertical tribes. They were generally small trees.[2] At least with Utrechtia piniformis the side shoots are in whorls.[3]
Like other Voltzialean plants, they had compact ovulate cones bearing bilateral bract-scale complexes. The leaves are scale-like, arranged spirally and only a few millimeters long.
Genera
[edit]Utrechtiaceae include the following selected genera:[1][2]
- Ernestiodendron Florin, 1934
- Lebachiella S.V. Meyen, 1997
- Ortiseia R. Florin, 1964
- Moyliostrobus C.N. Miller & J.T. Brown, 1973 : known from the Lower Permian of Texas (Moyliostrobus texanum).
- Otovicia
- Utrechtia G.W. Rothwell & G. Mapes, 2003
See also
[edit]![](http://upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/30px-Commons-logo.svg.png)
Wikimedia Commons has media related to Utrechtiaceae.
Data related to Voltziales at Wikispecies
References
[edit]- ^ a b GBIF
- ^ a b c Voltziales (palaeos.org)
- ^ Early Conifers
- Paleobiology Database
- Charles B. Beck: Origin and Evolution of Gymnosperms. Columbia University Press, New York 1988 ISBN 0-231-06358-X
- Wilson Nichols Stewart,Gar W. Rothwell Paleobotany and the Evolution of Plants
- G.W. Rothwell, Gene Mapes Validation of the names Utrechtiaceae, Utrechtia, and Utrechtia floriniformis
- Edith L. Taylor,Thomas N. Taylor,Michael Krings Paleobotany: The Biology and Evolution of Fossil Plants Prentice Hall, Englewood Cliffs 1993, S. 676-679. ISBN 0-13-651589-4