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- Publications
- Influence
A weathering hypothesis for glaciation at high atmospheric pCO2 during the Late Ordovician
- L. Kump, M. Arthur, M. Patzkowsky, M. Gibbs, D. S. Pinkus, P. Sheehan
- Geology
- 15 August 1999
New paired carbonate and organic-carbon isotope analyses from Nevada, USA, together with a consideration of the effects of mountain-building and ice-sheet coverage of the continents on atmospheric… Expand
The Late Ordovician Mass Extinction
- P. Sheehan
- Geology
- 1 May 2001
▪ Abstract Near the end of the Late Ordovician, in the first of five mass extinctions in the Phanerozoic, about 85% of marine species died. The cause was a brief glacial interval that produced two… Expand
The Evolution of Reef Communities
- P. Sheehan, J. A. Fagerstrom
- Geology
- 1 October 1987
THE REEF PHENOMENON: What is a Reef? Cenozoic Reef Models: Occurrence Cenozoic Reef Models II: Cenozoic Reef Models III Cenozoic Reef Models IV: Communities Ancient Reefs Autecology and History of… Expand
Understanding the great ordovician biodiversification event (GOBE): influences of paleogeography, paleoclimate, or paleoecology
- T. Servais, D. Harper, A. Munnecke, A. Owen, P. Sheehan
- Geology
- 1 April 2009
“The Great Ordovician Biodiversification Event” (GOBE) was arguably the most important and sustained increase of marine biodiversity in Earth’s history. During a short time span of 25 Ma, an… Expand
A new ecological-severity ranking of major Phanerozoic biodiversity crises
- G. R. Mcghee, M. Clapham, P. Sheehan, D. Bottjer, M. Droser
- Geology
- 15 January 2013
A new ecological-severity ranking of the major Phanerozoic biodiversity crises is proposed in which the Capitanian crisis is ranked lesser than the Frasnian (Late Devonian) but greater than the… Expand
Onshore-Offshore Patterns in the Evolution of Phanerozoic Shelf Communities
- D. Jablonski, J. J. Sepkoski, D. Bottjer, P. Sheehan
- Biology, Medicine
- Science
- 9 December 1983
Cluster analysis of Cambrian-Ordovician marine benthic communities and community-trophic analysis of Late Cretaceous shelf faunas indicate that major ecological innovations appeared in nearshore… Expand
Ecological ranking of Phanerozoic biodiversity crises: ecological and taxonomic severities are decoupled
- G. R. Mcghee, P. Sheehan, D. Bottjer, M. Droser
- Biology
- 3 September 2004
Abstract The past two decades have seen extensive analyses of the taxonomic severity of major biodiversity crises in geologic time. In contrast, we propose here an alternative analysis of the… Expand
A new look at Ecologic Evolutionary Units (EEUs)
- P. Sheehan
- Biology
- 20 December 1996
Abstract Ecologic Evolutionary Units (EEUs) were long intervals of Phanerozoic time during which marine communities maintained stable ecologic structures. Boucot (1983) recognized 12 Ecologic… Expand
Shape of Mesozoic dinosaur richness
- D. Fastovsky, Yifan Huang, J. Hsu, Jamie Martin-McNaughton, P. Sheehan, D. B. Weishampel
- Geology
- 1 October 2004
The richness of Mesozoic Dinosauria is examined through the use of a new global database. Mesozoic dinosaurs show a steadily increasing rate of diversification, in part attributable to the… Expand
Ecological ranking of Phanerozoic biodiversity crises: The Serpukhovian (early Carboniferous) crisis had a greater ecological impact than the end-Ordovician
- G. R. Mcghee, P. Sheehan, D. Bottjer, M. Droser
- Geology
- 1 February 2012
We propose a new ecological ranking of the major Phanerozoic biodiversity crises in which the Serpukhovian biodiversity crisis is ranked fifth in ecological impact, lesser than the Late Devonian but… Expand
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