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Information about Zosterophyllophyta

Zosterophyllaceae
Fossil range: Late Silurian - Devonian

Sawdonia ornata with ground creeping roots (A); lateral reniform sporangia (B)
Scientific classification
Kingdom:Plantae
Division:Lycopodiophyta
Class:Zosterophyllopsida  †
Order:Zosterophyllales †
Cleal & B.A. Thomas, 1994
Family:Zosterophyllaceae †
Genera
  • Crenaticaulis
  • Gosslingia
  • Gumuia
  • Rebuchia
  • Sawdonia
  • Serrulacaulis
  • Zosterophyllum
The Zosterophyllopsida or Zosterophylls were among the first vascular plants in the fossil record. They were probably stem-group lycophytes, so included the ancestors that lycophytes evolved from. They bore lateral, reniform sporangia, branched dichotomously, and grew at the ends by unrolling. Some had smooth stems, others were covered in small spines.

Some zosterophylls are reconstructed as being aquatic.

See also

External links

Scientific classification or biological classification is a method by which biologists group and categorize species of organisms. Scientific classification also can be called scientific taxonomy, but should be distinguished from folk taxonomy, which lacks scientific basis.
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Plantae
Haeckel, 1866[1]

Divisions

Green algae
  • Chlorophyta
  • Charophyta
Land plants (embryophytes)
  • Non-vascular land plants (bryophytes)

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Lycopodiophyta

Classes

Lycopodiopsida - clubmosses
Selaginellopsida - spikemosses
Isoetopsida - quillworts and scale trees
† Zosterophyllopsida - zosterophylls

The Division Lycopodiophyta (sometimes called Lycophyta
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In palaeontology, a stem group is a systematic grouping that is required to accommodate fossils in the classification of organisms. A stem group lies basally to a crown group, consisting of its most closely related living relatives.
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Lycopodiophyta

Classes

Lycopodiopsida - clubmosses
Selaginellopsida - spikemosses
Isoetopsida - quillworts and scale trees
† Zosterophyllopsida - zosterophylls

The Division Lycopodiophyta (sometimes called Lycophyta
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Drepanophycales †
Pichi-Sermolli, 1958

Families

Asteroxylaceae
Drepanophycaceae

Drepanophycales is an order of extinct plants of the Division Lycopodiophyta of ?Late Silurian to Late Devonian age, found in North America, China, Russia,
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