Abstract The Ordovician Period records an extraordinary biodiversity increase known as the
Great Ordovician Biodiversification Event (GOBE), which coincided with a series of …

Molluscs comprise the second largest phylum of animals (after arthropods), occurring in
virtually all habitats. Some are commercially important, a few are pests and some carry …

Marine biodiversity increased markedly during the Ordovician Period (~ 487–443 million
years ago). Some intervals within the Ordovician were associated with unusually rapid and …

Abstract The Ordovician of Scandinavia (ie Denmark, Norway and Sweden) has been
investigated for over two centuries and, through time, various chronostratigraphic schemes …

Abstract The 'Great Ordovician Biodiversification Event'comprises the rapid diversification of
marine organisms during the Ordovician Period. It is now clear that this adaptive radiation …

'A book about one apocalypse–much less five–could have been a daunting read, were it not
for the wit, lyricism, and clarity that Peter Brannen brings to every page.'Ed Yong, author of I …

Owing to the increasing availability of data for many fossil groups and a generally accepted
palaeogeographical configuration, palaeontologists have been able to develop …

Beaks are among the few hard parts of coleoid cephalopods and are informative for species
identification. Although mandible shape has been shown to be adaptive in many vertebrate …

The extensive, predominantly siliciclastic deposits of the Upper Ordovician of the Tafilalt
have long been the subject of scientific investigation. In the past 25 years, intensified …

Although an early Cambrian origin of cephalopods has been suggested by molecular
studies, no unequivocal fossil evidence has yet been presented. Septate shells collected …