New Zealand Cave Reveals 1-Million-Year-Old Fossils of 16 Species, Including Kākāpō Relative
Updated
Updated · ScienceDaily · Jun 24
New Zealand Cave Reveals 1-Million-Year-Old Fossils of 16 Species, Including Kākāpō Relative
3 articles · Updated · ScienceDaily · Jun 24
Summary
A cave near Waitomo on New Zealand’s North Island has produced the first large terrestrial vertebrate fossil collection from the country’s Early Pleistocene, preserving 12 bird species and four frog species from about 1 million years ago.
Volcanic ash layers dated to about 1.55 million and 1 million years ago bracket the fossils, letting researchers pin down the site’s age and identify it as the oldest known cave on New Zealand’s North Island.
Strigops insulaborealis—an ancient relative of the kākāpō—may have been less adapted for climbing and possibly still capable of flight, while the cave also held an extinct takahē ancestor and a pigeon related to Australia’s bronzewings.
The study argues that rapid climate shifts and major eruptions drove 33% to 50% species turnover before humans arrived, showing New Zealand’s wildlife had already been radically reshaped long before settlement roughly 750 years ago.
Mass extinctions rocked New Zealand long before humans. Are we misjudging the true fragility of its unique ecosystems?
Scientists just unveiled a lost world under New Zealand. What other secrets are trapped in ancient volcanic ash?
A flying kākāpō ancestor was just discovered. What made New Zealand’s ancient birds give up their wings?
Moa Eggshell Cave Reveals a Million-Year Fossil Record: How Volcanic Catastrophes and Climate Shaped New Zealand’s Unique Wildlife
Overview
The recent re-examination of Moa Eggshell Cave has transformed our understanding of New Zealand’s ancient past. Although fossils were first collected decades ago, palaeontologists found that the site’s surface had barely been explored, revealing a prehistoric treasure trove. This cave is now recognized as the first in New Zealand to provide a clear fossil record from the Early Pleistocene, about one million years ago. Thanks to unique geological conditions, researchers could precisely date the fossils, filling a critical gap in natural history and offering an unprecedented glimpse into an ecosystem that existed long before humans arrived.