This fossilised jawbone fragment is from an extinct crocodile that may have reached around 3 metres in length. It was found in lake sediments near St Bathans in Central Otago, and dates from around 16 million years ago. At this time the climate in New Zealand and Australia were similar, and they had many species in common. Since then New Zealand’s climate has cooled and mountains have formed – leading to differences in many of New Zealand’s life forms.
Te whakamahi i tēnei tūemi
Geology Museum, University of Otago
by R. Ewan Fordyce
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