Corda's fossil kauri wood (Agathoxylon cordaianum)

Agathoxylon cordaianum: Taxonomy and Paleobotany

The extinct coniferous tree Agathoxylon cordaianum once thrived in ancient ecosystems during the prehistoric era. Fossil records, including well-preserved wood specimens, provide crucial insight into the paleoecology of the regions where these gymnosperms flourished.

Taxonomy

  • царство Plantae
  • division Tracheophytes (Vascular Plants)
  • subdivision Spermatophytes (Seed plants)
  • superclass Gymnospermae (Gymnosperms)
  • division Pinophyta
  • subclass Cupressidae
  • order Araucariales (Southern pines and monkey-puzzles)
  • family Araucariaceae (Araucaria family)
  • genus Agathoxylon (Agathis-wood fossil genus)
  • species Agathoxylon cordaianum (Corda's fossil kauri wood)

Living Pulse

Morphology

Fossilized wood of Agathoxylon cordaianum exhibits distinct anatomical features characteristic of early conifers. Paleobotanists rely on the microscopic structure of the secondary xylem, particularly the arrangement of tracheids and rays, to accurately identify and classify this extinct taxon.

Interesting facts

The species was formally described by T. Hartig in 1848 based on paleobotanical evidence discovered within the brown coal flora of northern Germany.

Geography of distribution

  • Germany

Sources

  • GBIF
  • Tropicos

See also

True Araucarias

True Araucarias

Araucaria sect. Araucaria

Araucaria sect. Araucaria is a botanical section of evergreen conifers native to South America. It …