The problem of an 'Armorica microplate', detached from Gondwana and having had during part of the Palaeozoic an independent latitudinal evolution, is reconsidered in terms of a critical review of the palaeomagnetic data ...

The present paper is a report of work completed by the group 'Friends of Paleobiogeography' on the principles of palaeobiogeographic classification and nomenclature of palaeobiogeographic units (biochoremas). These principles ...