Coast Redwood
Sequoia sempervirens
The coast redwood (Sequoia sempervirens) is a massive conifer native to coastal California and Oregon. …
Coutts' Redwood (Sequoia couttsiae)
Silhouette: Michele M Tobias
/ License
Sequoia couttsiae - Paleogene Fossil Redwood Description
Fossilized specimens of Sequoia couttsiae reveal the presence of ancient sequoias in European wetlands during the Paleogene period. This extinct conifer flourished under warm-temperate climatic conditions millions of years ago.
Rich deposits of its leaves and cones have been studied extensively by paleontologists. The species provides a key reference for understanding conifer evolution during the Eocene and Oligocene epochs.
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 couttsiae (Coutts' Redwood)
Morphology
Fossil remains of Sequoia couttsiae display distinct leaf and cone morphology that separates it from modern relatives. The leaves were small, scale-like, and spirally arranged, closely resembling those of modern giant sequoias.
The reproductive organs have been described in detail:
- Spirally arranged leaves: Scale-like foliage that covered young shoots.
- Ovoid female cones: Small, woody cones borne on distinct, slender stalks.
- Pollen cones: Small male cones produced in clusters at the tips of twigs.
Applications
The scientific study of Sequoia couttsiae helps paleobotanists understand the shift in European ecosystems from tropical to temperate climates. Their fossilized remains serve as important indicators of Paleogene environmental conditions.
Fossil collections of this species are stored in academic institutions for morphological comparison. They provide valuable reference material for taxonomic studies of fossil conifers.
Interesting facts
The species was named to honor Lady Angela Burdett-Coutts, a prominent nineteenth-century philanthropist who funded paleobotanical work. Large accumulations of its fossils suggest it was a dominant canopy tree in ancient European swamps.
- Swamp dweller: Thrived in humid, waterlogged soils of prehistoric Europe.
- Bovey Tracey fossils: First discovered and described from coal beds in Devon, England.
- Taxonomic debate: Scholars have debated its exact relationship to modern conifer genera for decades.
Geography of distribution
- United Kingdom
- Germany
Sources
- Plants of the World Online (POWO) - Fossil Record
- Global Biodiversity Information Facility (GBIF)
- World Flora Online (WFO)
Technical Information
External Databases: GBIF
See also
Bitterwood Tree
Picrasma
A genus of deciduous trees and shrubs known for their extremely bitter bark and medicinal …
Read more →
480
Humboldt Araucaria Pine
Araucaria humboldtensis
A small, critically endangered coniferous tree native strictly to the high-altitude mountain peaks of southern …
Read more →
126
True Araucarias
Araucaria sect. Araucaria
Araucaria sect. Araucaria is a botanical section of evergreen conifers native to South America. It …
Read more →
124