M
Mark E. Patzkowsky
Researcher at Pennsylvania State University
Publications - 70
Citations - 4672
Mark E. Patzkowsky is an academic researcher from Pennsylvania State University. The author has contributed to research in topics: Ordovician & Extinction event. The author has an hindex of 36, co-authored 68 publications receiving 4326 citations. Previous affiliations of Mark E. Patzkowsky include University of Chicago & NASA Astrobiology Institute.
Papers
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Journal ArticleDOI
Phanerozoic trends in the global diversity of marine invertebrates.
John Alroy,Martin Aberhan,David J. Bottjer,Michael Foote,Franz T. Fürsich,Peter J. Harries,Austin J.W. Hendy,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,Shanan E. Peters,Loïc Villier,Peter J. Wagner,Nicole Bonuso,Nicole Bonuso,Philip S. Borkow,Benjamin Brenneis,Matthew E. Clapham,Matthew E. Clapham,Leigh M. Fall,Chad Allen Ferguson,Victoria L. Hanson,Victoria L. Hanson,Andrew Z. Krug,Andrew Z. Krug,Karen M. Layou,Karen M. Layou,Karen M. Layou,Erin Leckey,Sabine Nürnberg,Catherine M. Powers,Jocelyn A. Sessa,Jocelyn A. Sessa,Carl Simpson,Carl Simpson,Adam Tomašových,Adam Tomašových,Christy C. Visaggi,Christy C. Visaggi +46 more
TL;DR: In this paper, a new data set of fossil occurrences representing 3.5 million specimens was presented, and it was shown that global and local diversity was less than twice as high in the Neogene as in the mid-Paleozoic.
Journal ArticleDOI
Effects of sampling standardization on estimates of Phanerozoic marine diversification
John Alroy,Charles R. Marshall,Richard K. Bambach,K. Bezusko,Michael Foote,Franz T. Fürsich,Thor A. Hansen,Steven M. Holland,Linda C. Ivany,David Jablonski,David K. Jacobs,D. C. Jones,Matthew A. Kosnik,Scott Lidgard,Sarah A. Low,Arnold I. Miller,Philip M. Novack-Gottshall,Philip M. Novack-Gottshall,Thomas D. Olszewski,Mark E. Patzkowsky,David M. Raup,Kaustuv Roy,J. John Sepkoski,M. G. Sommers,Peter J. Wagner,A. Webber +25 more
TL;DR: A new database of this kind for the Phanerozoic fossil record of marine invertebrates is introduced and four substantially distinct analytical methods that estimate taxonomic diversity by quantifying and correcting for variation through time in the number and nature of inventories are applied.
Journal ArticleDOI
A weathering hypothesis for glaciation at high atmospheric pCO2 during the Late Ordovician
TL;DR: In this article, 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 pCO2, lead to a new hypothesis for the cause of the Late Ordovician glaciation.
Book ChapterDOI
Sequence stratigraphy and long-term paleoceanographic change in the Middle and Upper Ordovician of the eastern United States
Journal ArticleDOI
Gradient ecology of a biotic invasion: biofacies of the type cincinnatian series (upper ordovician), cincinnati, ohio region, usa
TL;DR: The early Cincinnatian (C1-early C4 depositional sequences) displays two relatively stable faunal gradients, with the primary gradient reflecting onshore-offshore setting and the secondary gradient reflecting substrate consistency as mentioned in this paper.