Records of the Geological Survey of New South Wales Volume 13 Part 1

Abstract

Some ideas about the palaeoecology and palaeogeography of the marine Cretaceous sediments of the Great Artesian Basin, based on analysis of foraminiferal assemblages, are presented. The author takes into consideration the variety of species, the general character of the benthos (both agglutinated and calcareous), and the presence or absence and the character of planktonic species, and correlates these phenomena with other similar areas. The existence of climatic zonation during Cretaceous time is accepted, and the existence and development of world-wide distribution of planktonic foraminifera in the Cretaceous is discussed, as well as foraminiferal zonation depending on temperature differences due to palaeolatitude.