Organophosphatic brachiopods: patterns of biodiversification
and extinction in the early Palaeozoic.
of Late Ordovician Hirnantia Fauna on the Upper Yangtze Platform, South China.
This paper is a contribution to IGCP Project 591 'The Early to Middle Palaeozoic Revolution--Bridging the Gap between the Great Ordovician Biodiversification
Event and the Devonian Terrestrial Revolution'.
This paper is to document the occurrences of the Saucrorthis Fauna and to investigate its implications for the Great Ordovician Biodiversification
Event (GOBE) by comparing its taxonomic composition and palaeogeographic distribution with those of the Aporthophyla Fauna.
discuss the implications of the Darriwilian Saucrorthis Fauna for the Great Ordovician Biodiversification
The results were summarized in a voluminous book, The Great Ordovician Biodiversification
Event (Webby et al.
Predatory pressure increased during the Great Ordovician Biodiversification
Event, and this correlates with the apparent independent evolution of nacre in many groups of molluscs (Vendrasco et al.
Details of the activities of IUGS/UNESCO International Geoscience Programme (IGCP) Project 591 The Early to Middle Palaeozoic Revolution--Bridging the Gap between the Great Ordovician Biodiversification
Event and the Devonian Terrestrial Revolution may be found on the IGCP 591 website (www.
The Cambrian period, known for the "Cambrian Explosion" that saw the sudden appearance of all the major animal groups and the establishment of complex ecosystems, was followed by the "Great Ordovician Biodiversification
Event," when the number of marine animal genera increased exponentially over a period of 25 million years.
of the nearby orchard community tends to enhance the over-all species diversity and contributes also to the pest control by the antagonists which interfer between both the systems.
It is interesting to note that, based on molecular analyses of other groups of organisms, taxa of the high Andes and Patagonia have also been suggested as prime candidates for the impact of Pleistocene effects on biodiversification
Yet in terms of new species, this period cannot hold a candle to a little-known explosion of life called the Great Ordivician Biodiversification