Utrechtiaceae
Utrechtiaceae is an extinct family of trees related to modern conifers.[1] This family dates back to the late Carboniferous and Early Permian.[2]
| Utrechtiaceae | |
|---|---|
 | |
| Fossil of Utrechtia piniformis | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Division: | Pinophyta |
| Class: | Pinopsida |
| Order: | †Voltziales |
| Family: | †Utrechtiaceae Mapes & G. W. Rothwell |
Description
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
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
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References
- 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
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