Geoff Baylis lecture: Geological constraints on the age and antiquity of land in New Caledonia and the Chatham Islands.

Speaker: Hamish Campbell (Emeritus Scientist, GNS Science). Location: Castle 1, University of Otago (drinks and nibbles starting from 5:15 in the concourse).

This is an illustrated talk exploring the geological evidence for the emergence of land and onset of terrestrial conditions in New Caledonia (northern Zealandia) in the Oligocene, and in the Chatham Islands (eastern Zealandia) in the Pliocene. These age interpretations have significant implications for our understanding of the antiquity and biodiversity of the floras of both New Caledonia and the Chatham Islands.