PALAEOBIOGEOGRAPHY is a field marked by important intellectual insights and developments; recently the field has shown signs of emerging insights and new growth. This positive trajectory can be ascribed to several significant developments. Chief among these is our growing knowledge of the fossil record, involving the publication of more detailed palaeobiogeographic studies (Mawson et al. 1998; ...

The occurrence of the blue-green alga Girvanella, reported for the first time in the Ordovician rocks of South America (Precordilleran Ar­ gentina), allows the completion of the pattern of horizontal distribution of this organism in relation to the palaeobiogeography of the Lower Ordovi­ cian.

During the latest Neoproterozoic to Mid-Cambrian time (580–505 Ma ago), the Earth underwent significant changes in palaeogeography that included rifting of a possible supercontinent and the near simultaneous formation of a second, slightly smaller supercontinent. It is against this tectonic backdrop that the Cambrian radiation occurred. Although the general tectonic setting during this interval...

the present article is a review of a palaeobiogeographic analysis of jurassic ostracods from east africa, india and madagascar and includes also some general remarks on palaeobiogeography, biodiversity and ostracod ecology.the palaeobiogeographic study shows the high significance of this microfossil group for the reconstruction of palaeogeographic processes, particularly plate tectonic developm...

Starting from a subjective viewpoint on the decreasing interest in invertebrate fossil taxonomy, this essay discusses its importance palaeobiological studies exemplified with cases palaeobiogeography and palaeoecology of rugose corals, aims at provoking discussion topic. The possible causes this negative declining trend include inherent problems palaeontological changing systems in science high...

the larger benthic foraminifera gyroconulina columellifera schroeder & darmoian, 1977 (type-locality: maastrichtian aqra formation of iraq) is described for the first time from two sections of the maastrichtian tarbur formation of the zagros fold-thrust-belt, sw iran. new details on its wall microstructure are provided. the microfacies is represented by bioclastic wacke-/pack-/grainstones with ...