| Literature DB >> 18599780 |
John Alroy1, Martin Aberhan, David J Bottjer, Michael Foote, Franz T Fürsich, Peter J Harries, Austin J W Hendy, Steven M Holland, Linda C Ivany, Wolfgang Kiessling, Matthew A Kosnik, Charles R Marshall, Alistair J McGowan, Arnold I Miller, Thomas D Olszewski, Mark E Patzkowsky, Shanan E Peters, Loïc Villier, Peter J Wagner, Nicole Bonuso, Philip S Borkow, Benjamin Brenneis, Matthew E Clapham, Leigh M Fall, Chad A Ferguson, Victoria L Hanson, Andrew Z Krug, Karen M Layou, Erin H Leckey, Sabine Nürnberg, Catherine M Powers, Jocelyn A Sessa, Carl Simpson, Adam Tomasovych, Christy C Visaggi.
Abstract
It has previously been thought that there was a steep Cretaceous and Cenozoic radiation of marine invertebrates. This pattern can be replicated with a new data set of fossil occurrences representing 3.5 million specimens, but only when older analytical protocols are used. Moreover, analyses that employ sampling standardization and more robust counting methods show a modest rise in diversity with no clear trend after the mid-Cretaceous. Globally, locally, and at both high and low latitudes, diversity was less than twice as high in the Neogene as in the mid-Paleozoic. The ratio of global to local richness has changed little, and a latitudinal diversity gradient was present in the early Paleozoic.Mesh：
Year: 2008 PMID： 18599780 DOI： 10.1126/science.1156963
Source DB: PubMed Journal: Science ISSN： 0036-8075 Impact factor: 47.728