Coast Redwood
Sequoia sempervirens
The coast redwood (Sequoia sempervirens) is a massive conifer native to coastal California and Oregon. …
Sternberg's redwood (Sequoia sternbergii)
Redwood
Coast Redwood
Silhouette: Michele M Tobias
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Sequoia sternbergii - Fossil Redwood Species from Cenozoic Era
Fossilized remains of Sequoia sternbergii offer valuable insights into the ancient distribution of redwoods during the Cenozoic era. These extinct conifers once occupied vast forest ecosystems across the Northern Hemisphere.
Paleobotanical excavations have uncovered their structural remnants in multiple European sedimentary basins. Their study helps researchers reconstruct prehistoric climates and evolutionary pathways.
Taxonomy
- ∟ царство Plantae
- ∟ division Tracheophytes (Vascular Plants)
- ∟ subdivision Spermatophytes (Seed plants)
- ∟ superclass Gymnospermae (Gymnosperms)
- ∟ division Pinophyta
- ∟ subclass Cupressidae
- ∟ order Cupressales (Cypresses and junipers)
- ∟ family Cupressaceae (Cypress Family)
- ∟ subfamily Sequoioideae (Sequoias)
- ∟ genus Sequoia (Coast redwood)
- ∟ species Sequoia sternbergii (Sternberg's redwood)
Morphology
The morphological features of Sequoia sternbergii are preserved primarily in stone impressions of leaves and cones. Fossil evidence indicates that the needles were arranged in two flat ranks, similar to modern redwoods.
The reproductive structures also show distinct traits:
- Needle-like foliage: Flattened leaves that optimized light absorption in ancient forests.
- Globose cones: Small, woody cones with scales arranged in tight spiral patterns.
- Slender twigs: Branching systems that supported dense foliage arrangements.
Applications
The primary application of Sequoia sternbergii lies in the field of scientific research and education. Fossil specimens are used to reconstruct paleoclimates and map historical phytogeography.
Museums exhibit these fossils to demonstrate plant evolution over geological time. They also assist geologists in biostratigraphic dating of rock layers.
Interesting facts
Fossil records of this species show that redwoods once had a much wider geographic distribution than they do today. The discovery of these fossils in Europe surprised early botanists who associated redwoods only with North America.
- Ancient presence: Lived millions of years ago alongside prehistoric mammals.
- Eminent description: Named in honor of Caspar Maria von Sternberg, a foundational figure in paleobotany.
- Preservation quality: Leaves are often found beautifully preserved in fine-grained clays.
Geography of distribution
- Czech Republic
- Germany
Sources
- Plants of the World Online (POWO) - Fossil Record
- Global Biodiversity Information Facility (GBIF)
- Tropicos Database
See also
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True Araucarias
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