free drag and drop site building



Updated Sept 2, 2016

(* UCSC graduate student)

Clapham, M.E. 2016. Organism activity levels predict marine invertebrate survival during ancient global change extinctions. Global Change Biology, in press. PDF

Clapham, M.E., Karr, J.A.*, Nicholson, D.B., Ross, A.J., and Mayhew, P.J. 2016. Ancient origin of high taxonomic richness among insects. Proceedings of the Royal Society B, v. 283(20152476), p. 1-6. PDF - R code at GitHub

Condamine, F.L., Clapham, M.E., and Kergoat, G.J. 2016. Global patterns of insect diversification: towards a reconciliation of fossil and molecular evidence? Scientific Reports, v. 6(19208), p. 1-13. PDF

Schaal, E.K., Clapham, M.E., Rego, B.L., Wang, S.C., and Payne, J.L. 2016. Comparative size evolution of marine clades from the Late Permian through Middle Triassic. Paleobiology, v. 42, p. 127-142. PDF

Clapham, M.E. 2015. Ecological consequences of the Guadalupian extinction and its role in the brachiopod-mollusk transition. Paleobiology, v. 41, p. 266-279. PDF - R code at GitHub

Karr, J.A.* and Clapham, M.E. 2015. Taphonomic biases in the insect fossil record: shifts in articulation over geologic time. Paleobiology, v. 41, p. 16-32 PDF - R code at GitHub - Data files at Dryad

Ghisalberti, M., Gold, D.A., Laflamme, M., Clapham, M.E., Narbonne, G.M., Summons, R.E., Johnston, D.T., and Jacobs, D.K. 2014. Canopy flow analysis reveals the advantage of size in the oldest communities of multicellular eukaryotes. Current Biology, v. 24, p. 305-309. PDF

Badyrka, K.A.*, Clapham, M.E., and Lopez, S. 2013. Paleoecology of brachiopod communities during the late Paleozoic ice age in Bolivia (Copacabana Formation, Pennsylvanian-Early Permian). Palaeogeography, Palaeoclimatology, Palaeoecology, v. 389, p. 56-65. PDF

Darroch, S.A.F., Laflamme, M., and Clapham, M.E. 2013. Population structure of the oldest known macroscopic communities from Mistaken Point, Newfoundland. Paleobiology, v. 39, p. 591-608. PDF - Data files at Figshare

Clapham, M.E., Fraiser, M.L., Marenco, P.J., and Shen, S.Z. 2013. Taxonomic composition and environmental distribution of post-extinction rhynchonelliform brachiopod faunas: constraints on short-term survival and the role of anoxia in the end-Permian mass extinction. Palaeogeography, Palaeoclimatology, Palaeoecology, v. 374, p. 284-292. PDF

McGhee, G.R., Clapham, M.E., Sheehan, P.M., Bottjer, D.J., and Droser, M.L. 2013. A new ecological-severity ranking of major Phanerozoic biodiversity crises. Palaeogeography, Palaeoclimatology, Palaeoecology, v. 370, p. 260-270. PDF

Clapham, M.E. 2013. Extinction: end-Permian mass extinction. In: eLS 2013, John Wiley & Sons Ltd: Chichester. DOI: 10.1002/9780470015902.a0001654.pub3.

Clapham, M.E. and James, N.P. 2012. Regional-scale marine faunal change in eastern Australia during late Paleozoic climate fluctuations and its relationship to local community restructuring. Palaios, v. 27, p. 627-635. PDF

Clapham, M.E. and Karr, J.A.* 2012. Environmental and biotic controls on the evolutionary history of insect body size. Proceedings of the National Academy of Sciences, USA, v. 109, p. 10927-10930. PDF - Insect size database
Selected media coverage: Discover Magazine - National Geographic

Payne, J.L. and Clapham, M.E. 2012. End-Permian mass extinction in the oceans: an ancient analog for the 21st century? Annual Reviews of Earth and Planetary Sciences, v. 40, p. 89-111. PDF

Marenco, P.J., Griffin, J.M., Fraiser, M.L., and Clapham, M.E. 2012. Paleoecology and geochemistry of Lower Triassic (Spathian) microbial mounds and implications for anoxia following the end-Permian mass extinction. Geology, v. 40, p. 715-718. PDF

Dornbos, S.Q., Clapham, M.E., Fraiser, M.L., and Laflamme, M. 2012. Lessons from the fossil record: the Ediacaran radiation, the Cambrian radiation, and the end-Permian mass extinction, in Solan, M., Aspden, R., and Paterson, D. (eds.), Marine Biodiversity and Ecosystem Functioning, Oxford University Press, p. 52-72. PDF

Clapham, M.E. and Payne, J.L. 2011. Acidification, anoxia, and extinction: a multiple regression analysis of extinction selectivity during the Middle and Late Permian. Geology, v. 39, p. 1059-1062. PDF

Clapham, M.E. 2011. Ordination methods and the evaluation of Ediacaran communities, in Laflamme, M., Schiffbauer, J.D. and Dornbos, S.Q. (eds.), Quantifying the Evolution of Early Life: Numerical Approaches to the Evaluation of Fossils and Ancient Ecosystems, Springer, p. 3-21. PDF

Fraiser, M.L., Clapham, M.E., and Bottjer, D.J. 2011. Mass extinctions and changing taphonomic processes: fidelity of the Guadalupian, Lopingian, and Early Triassic fossil records, in Allison, P.A. and Bottjer, D.J. (eds.), Taphonomy: Process and Bias Through Time, Springer, p. 569-590. PDF

Clapham, M.E. 2010. Faunal evidence for a cool boundary current and decoupled regional climate cooling in the Permian of western Laurentia. Palaeogeography, Palaeoclimatology, Palaeoecology, v. 298, p. 348-359. PDF

Clapham, M.E. 2010. The late Paleozoic section at Arrow Canyon, Nevada: facies, cyclicity, and far-field record of the late Paleozoic ice age. Pacific Section SEPM Fall Field Trip Guidebook, Book 109, p. 1-42.

Clapham, M.E., Shen, S.Z., and Bottjer, D.J. 2009. The double mass extinction revisited: re-assessing the severity, selectivity, and paleobiogeographic pattern of the end-Guadalupian biotic crisis (Middle-Late Permian). Paleobiology, v. 35, p. 32-50. PDF

Shen, S.Z. and Clapham, M.E. 2009. Wuchiapingian (Lopingian, Late Permian) brachiopods from the Episkopi Formation of Hydra Island, Greece. Palaeontology, v. 52, p. 713-743. PDF

Clapham, M.E. and James, N.P. 2008. Paleoecology of Early-Middle Permian (Sakmarian-Capitanian) marine communities in eastern Australia: response to global climate change in the aftermath of the late Paleozoic ice age. Palaios, v. 23, p. 738-750. PDF

Bottjer, D.J., Clapham, M.E., Fraiser, M.L. and Powers, C.M. 2008. Understanding mechanisms for the end-Permian mass extinction and the protracted Early Triassic aftermath/recovery. GSA Today, v. 18, no. 9, p. 4-10. PDF

Alroy, J., Aberhan, M., Bottjer, D.J., Foote, M., Fursich, F.T., Harries, P.J., Hendy, A.J.W., Holland, S.M., Ivany, L.C., Kiessling, W., Kosnik, M.A., Marshall, C.R., McGowan, A.J., Miller, A.I., Olszewski, T.D., Patzkowsky, M.E., Peters, D.E., Villier, L., Wagner, P.J., Bonuso, N., Borkow, P.S., Brenneis, B., Clapham, M.E., Fall, L.M., Ferguson, C.A., Hanson, V.L., Krug, A.Z., Layou, K.M., Leckey, E.H., Nurnburg, S., Powers, C.M., Sessa, J.A., Simpson, C., Tomasovych, A., and Visaggi, C.C. 2008. Phanerozoic trends in the global diversity of marine invertebrates. Science, v. 321, p. 97-100. PDF

Clapham, M.E. and Bottjer. D.J. 2007. Prolonged Permian-Triassic ecological transition recorded by molluscan dominance in Late Permian offshore assemblages. Proceedings of the National Academy Sciences, USA, v. 104, p. 12971-12975. PDF

Clapham, M.E. and Bottjer, D.J. 2007. Permian marine paleoecology and its implications for large-scale decoupling of brachiopod and bivalve abundance and diversity during the Lopingian (Late Permian). Palaeogeography, Palaeoclimatology, Palaeoecology, v. 249, p. 283-301. PDF

Clapham, M.E., Bottjer, D.J., Powers, C.M., Bonuso, N., Fraiser, M.L., Marenco, P.J., Dornbos, S.Q., and Pruss, S.B. 2006. Assessing the ecological dominance of Phanerozoic marine invertebrates. Palaios, v. 21, p. 431-441. PDF

Bottjer, D.J. and Clapham, M.E. 2006. Evolutionary paleoecology of Ediacaran benthic marine organisms, in Xiao, S. and Kaufman, A.J. (eds.), Neoproterozoic Geobiology, Kluwer Press, p. 91-114. PDF

Clapham, M.E. and Corsetti, F.A. 2005. Deep valley incision in the terminal Neoproterozoic (Ediacaran) Johnnie Formation, eastern California, USA: tectonically or glacially driven? Precambrian Research, v. 141, p. 154-164. PDF

Clapham, M.E., Narbonne, G.M., Gehling, J.G., Greentree, C., and Anderson, M.M. 2004. Thectardis avalonensis: a new Ediacaran fossil from the Mistaken Point biota, Newfoundland. Journal of Paleontology, v. 78, p. 1031-1036. PDF

Clapham, M.E., Narbonne, G.M., and Gehling, J.G. 2003. Paleoecology of the oldest known animal communities: Ediacaran assemblages at Mistaken Point, Newfoundland. Paleobiology, v. 29, p. 527-544. PDF - Data files at Figshare

Wood, D.A., Dalrymple, R.W., Narbonne, G.M., Gehling, J.G. and Clapham, M.E. 2003. Paleoenvironmental analysis of the late Neoproterozoic Mistaken Point and Trepassey formations, southeastern Newfoundland. Canadian Journal of Earth Sciences, v. 40, p. 1375-1391. PDF

Clapham, M.E. and Narbonne, G.M. 2002. Ediacaran epifaunal tiering. Geology, v. 30, p. 627-630. PDF - Data files at Figshare

Clapham, M.E., Smith, P.L., and Tipper, H.W. 2002. Lower to Middle Jurassic stratigraphy, ammonoid fauna, and sedimentary history of the Laberge Group in the Fish Lake Syncline, northern Whitehorse Trough, Yukon, Canada. Yukon Exploration and Geology 2001, p. 73-85. PDF