Desmond's araucaria (Araucaria desmondii)

Silhouette: LeonardoG (photography) and T. Michael Keesey (vectorization) / License

Araucaria desmondii: Fossil Conifer of the Late Cretaceous

Deep within the geological layers of eastern Otago, New Zealand, lies the fossilized evidence of an ancient conifer. This prehistoric tree thrived during the Late Cretaceous period, a time when the region's flora was vastly different from today. Classified within the Araucariaceae family, it belongs to the extinct section Perpendicula. Paleobotanical studies of its macroflora have provided valuable insights into the gymnosperm diversity of ancient Gondwanan ecosystems.

Taxonomy

Morphology

While complete structural details are lost to time, fossil records indicate that it possessed characteristics typical of the ancient Araucariaceae lineage. The preserved macrofloras suggest it was a robust gymnosperm adapted to the Late Cretaceous climate of what is now New Zealand.

Interesting facts

  • First described by paleontologist Mike Pole in 1995.
  • Fossils were specifically recovered from the eastern Otago region, highlighting the area's rich paleobotanical significance.
  • It provides crucial evidence of the historical distribution of the Araucaria genus across the ancient supercontinent of Gondwana.

Geography of distribution

  • New Zealand

Sources

  • GBIF
  • Pole, M. 1995: Late Cretaceous macrofloras of eastern Otago, New Zealand: gymnosperms. Australian systematic botany, 8: 1067–1106.