Utrechtia

Utrechtiaceae

Utrechtiaceae

Extinct family of conifers

Utrechtiaceae is an extinct family of trees related to modern conifers.[1] This family dates back to the late Carboniferous and Early Permian.[2]

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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

See also

Wikimedia Commons has media related to Utrechtiaceae.

References

  1. [1]
    GBIF
  2. [2]
    Voltziales (palaeos.org)
  3. [3]
    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


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