Palaeomagnetism and the Mid-European Ocean ? an alternative interpretation of Lower Palaeozoic apparent polar wander

The Early Ordovician bellerophontoidPeelerophon oehlerti(Bergeron) from Argentina, Australia and Thailand

“…3). Recent palaeomagnetic data from France and Iberia (see Burrett, 1983a) places these areas in high palaeolatitudes of about 65 o S or more which is in accord with palaeoclimatic evidence (Spjeldnaes, 1967;Dor6 & Le Gall, 1972). The palaeomagnetic data from the Early Ordovician of the Shan-Thai block (Haille, 1980), which yield a palaeolatitude of 43°N must be viewed with scepticisim, as those data were derived from highly cleaved and thermally metamorphosed carbonates.…”