Waarre ginkgoite (Ginkgoites waarrensis)

Ginkgoites waarrensis - Mesozoic Fossil Ginkgo from Australia

First described in the mid-20th century, Ginkgoites waarrensis stands as a notable fossil taxon from the Mesozoic deposits of Victoria. This species contributes to our understanding of high-latitude vegetation in the southern hemisphere during the Mesozoic era. Its discovery highlights the global distribution of the Ginkgoales lineage.

Taxonomy

Morphology

The fossil leaves are characterized by a fan-shaped structure with moderate lobing along the upper margin. Fine, parallel dichotomous venation is visible across the carbonaceous film left by the leaf blade. The overall dimensions and leaf margin division distinguish it from related species in the region.

Epidermal structures preserved in the fossils show stomata arranged in files. These cellular features resemble those found in other Mesozoic ginkgophytes but display unique dimensions that justify its classification as a distinct species.

Interesting facts

  • The species was named by paleobotanist J.G. Douglas in 1965 based on material collected from the Waarre region.
  • It coexisted with a variety of ancient ferns, conifers, and early seed plants in a moist, temperate high-latitude environment.
  • The prefix dagger symbol in its scientific name denotes that both the species and the genus are entirely extinct.

Geography of distribution

  • Australia

Sources

  • Douglas, J.G. (1965). The Mesozoic leaf Ginkgoites australis (McCoy) Florin, and a new species, Ginkgoites waarrensis n. sp. Proceedings of the Royal Society of Victoria.
  • Wikispecies contributors (2026). Taxonavigation for Ginkgoites waarrensis.