Science. 1959 Jul 24;130(3369):219-20. doi: 10.1126/science.130.3369.219.
An interdependence between the geographical distribution of dextral and sinistral populations of the planktonic foraminifer, Globigerina pachyderma, and sea surface-temperatures is demonstrated. It is inferred that changes in dominant coiling direction at lower levels in sediment cores from the North Atlantic record southward shifts of isotherms during the last ice age.
证明了浮游有孔虫Globigerina pachyderma 的右旋和左旋种群的地理分布之间存在相互依存关系。据推断，北大西洋沉积物岩芯中较低层位主要旋卷方向的变化记录了末次冰期期间等温线向南的移动。
