A 1-Million-Year-Old Kakapo Ancestor Discovered by Australian Researchers

Fossil Discovery in Australia and New Zealand Caves

According to НВ — Техно: In a cave on New Zealand's North Island, scientists from Australia and New Zealand have unearthed fossils representing 12 bird species and 4 frog species, dating back roughly 1 million years. Published in the journal Alcheringa: An Australasian Journal of Palaeontology, the study reveals that these remains were preserved by layers of volcanic ash from eruptions that occurred 1.55 million and 1 million years ago. This site is now recognized as the oldest known fossil deposit on the North Island.

The Fossils and Their Significance

Among the 12 bird species identified is a new species, Strigops insulaborealis, which is a direct ancestor of the modern kakapo parrot. Unlike its living relative, this ancient bird had weaker legs. The fossil assemblage also includes the remains of an extinct ancestor of the takahē bird, as well as an ancient pigeon related to Australia's bronzewing pigeons. Notably, volcanic eruptions and climate shifts caused the extinction of between one-third and one-half of the species living at that time.

This discovery provides crucial insights into how modern bird and frog species in the region evolved and emerged. It sheds light on the biodiversity and evolutionary dynamics of the North Island, helping scientists understand how climate and environmental changes drive species adaptation and extinction. The identification of a new bird species underscores the richness of the region's ancient fauna and its importance for studying evolutionary processes in birds and amphibians.

In addition to the remarkable findings in New Zealand, recent discoveries in Patagonia have unveiled a new ancient turtle species, further enriching our understanding of prehistoric biodiversity. These findings highlight the significance of fossil records in revealing evolutionary patterns across various regions. To explore more about this fascinating turtle species and its implications for evolutionary studies, visit this article.