< Submitted and Accepted >

Contreras DL, Ranks SL, Duijnstee IAP, Marshall CR and Looy CV, submitted. Evolution of dispersal strategies in conifers: functional divergence and convergence in the morphology of diaspores. Perspectives in Plant Ecology, Evolution and Systematics.

Looy CV, Kerp H, Duijnstee IAP and DiMichele WA, submitted. The late Paleozoic ecological-evolutionary laboratory, a land-plant fossil record perspective. The Sedimentary Record.

Sephton MA, Jiao D, Engel MH, Looy CV and Visscher H, submitted. Terrestrial acidification during the end-Permian biosphere crisis? Geology.

Looy CV and Hotton CL, accepted. Spatiotemporal relationships among Late Pennsylvanian plant assemblages: paleobotanical evidence from the Markley Formation, West Texas, USA. Review of Paleobotany and Palynology.

Stevenson R, Evangelista D and Looy CV, accepted. When conifers took flight: a biomechanical evaluation of an imperfect evolutionary takeoff. Paleobiology.

Looy CV, van Hoof TB, Stevenson RA and Mander L, in press. Evidence for coal forest refugia in the seasonally dry Pennsylvanian tropical lowlands of the Illinois Basin, USA. PeerJ.

Kirchholtes RP, van Mourik JM and Johnson BR , submitted. Phytoliths as indicators of plant community change: A case study of the reconstruction of the historical extent of the oak savanna in the Willamette Valley Oregon, USA, Catena.

< 2014 >

Looy CV and Stevenson R 2014. Earliest occurrence of autorotating seeds in conifers: the mid-Permian (Kungurian-Wordian) Manifera talaris sp. nov. International Journal of Plant Sciences 75: 841-854.

Blois JL, Gotelli NJ, Behrensmeyer AK, Faith JT, Lyons SK, William SJW, Amatangelo KL, Bercovici A, Du A, Eronen JT, Graves GR, Jud N, Labandeira CC, Looy CV, McGill B, Patterson D, Potts R, Riddle B, Terry R, Tóth A, Villaseñor and Wing SL, 2014. A framework for evaluating the influence of climate, dispersal limitation, and biotic interactions using fossil pollen associations across the late Quaternary. Ecography 37: published online.

DiMichele WA Chaney DS, Falcon-Lang H, Kerp H, Looy CV, Lucas SG, Krainer K and Voigt S, 2014. A compositionally unique voltzian conifer-callipterid flora from a carbonate-filled channel, Early Permian age, Robledo Mountains, New Mexico, and its broader significance. In: Lucas SG and DiMichele WA (eds), Carboniferous - Permian Transition in the Robledo Mountains, Southern New Mexico, New Mexico Museum of Natural History and Science Bulletin: Published online.

DiMichele WA, Lucas SG, Looy CV, Chaney CS and Voight S, 2014. Early Permian fossil floras from the red beds of Prehistoric Trackways National Monument, Southern New Mexico. In: Lucas SG and DiMichele, WA (eds), Carboniferous - Permian Transition in the Robledo Mountains, Southern New Mexico New Mexico Museum of Natural History and Science Bulletin: published online.

Benca JP, Carlisle MH, Bergen S and Strömberg CAE, 2014. Applying morphometrics to early land plant systematics: A new species of Leclercqia (Lycopsida) from Washington State. American Journal of Botany 101: 510–520.

Barnosky AD, Holmes M, Kirchholtes R, Lindsey E, Maguire KC, Poust AW, Stegner MA, Sunseri J, Swartz B , Swift J, Villavicencio NA and Wogan GOU, 2014. Prelude to the Anthropocene: Two new North American Land Mammal Ages (NALMAs). The Anthropocene Review: published online before print.

Benca JP, 2014. Cultivation techniques for terrestrial clubmosses (Lycopodiaceae): Conservation, research, and horticultural opportunities for an early-diverging plant lineage. American Fern Journal 102: 25–48.

< 2013 >

Looy CV and Duijnstee IAP, 2013. Characterizing morphologic variability in foliated Paleozoic conifer branches – a first step in testing its potential as proxy for taxonomic position. In: Lucas SG, et al. (eds), The Carboniferous-Permian transition. New Mexico Museum of Natural History and Science Bulletin 60: 215-223.

Looy C.V., 2013. Natural history of a plant trait: branch system abscission in Paleozoic conifers and its environmental, autecological and ecosystem implications in a fire-prone world. Paleobiology 39:235-252.

< 2012 >

Tabor N.J., Romanchock C.M., Looy C.V., Hotton C., DiMichele W.A. and Chaney D.S., in press. Biome dynamics and niche-conservatism of Late Pennsylvanian vegetation in western equatorial Pangaea. In: Gasiewicz, A. and Slowakiewicz, M. (Eds.): Late Palaeozoic climate cycles: their evolutionary, sedimentological and economic impact. Journal of the Geological Society of London Special Publication 376.

< 2011 >

Visscher H, Sephton MA, and Looy CV, 2011. Fungal virulence at the time of the end-Permian biosphere crisis? Geology 39: 883-886.

DiMichele W.A., Looy CV, and Chaney D.S., 2011. A new genus of Gigantopterid from the Middle Permian of the United States and China and its relevance to the Gigantopterid concept. International Journal of Plant sciences 172: 107-119.

< 2010 >

Prevec R, Gastaldo RA, Neveling J, Reid SB and Looy CV, 2010. An autochthonous glossopterid flora with latest Permian palynomorphs and its depositional setting in the Dicynodon Assemblage Zone of the southern Karoo Basin, South Africa. Palaeogeography, Palaeoclimatology, Palaeoecology 292: 391-408.

< 2009 >

Falcon-Lang HJ, Nelson WJ, Elrick S, Looy CV, Ames PA and DiMichele WA, 2009. Incised channel fills containing conifers indicate that seasonally dry vegetation dominated Pennsylvanian tropical lowlands. Geology 37: 923-926.

Sephton MA, Visscher H, Looy CV, Verchovsky AB and Watson JS, 2009. Chemical consititution of a Permian-Triassic disaster species. Geology 37: 875-878.

Prevec R, Labandeira CC, Neveling J, Looy CV, Bamford MK, Sims HJ and Gastaldo RA, 2009. Portrait of a Gondwanan ecosystem: a new Permian locality from Kwazulu-Natal, South Africa. Review of Paleobotany and Palynology 156: 454-493.

Bennington JB, DiMichele WA, Badgley C, Bambach RK, Barrett PM, Behrensmeyer AK, Bobe R, Burnham RJ, Daeschler EB, Van Dam J, Eronen JT, Erwin DH, Finnegan S, Holland SM, Hunt G, Jablonki D, Jackson ST, Jacobs BE, Kidwell SM, Koch PL, Kowalewski MJ, Labandeira CC, Looy CV, Lyons SK, Novack-Gottshall, PM, Potts, R, Roopnarine PD, Strömberg CAE, Sues HD, Wagner PJ, Wilf, P and Wing SL, 2009. Critical issues of scale in paleoecology. Palaios 24: 1-4.

< 2008 >

DiMichele WA, Kerp H, Tabor NJ and Looy CV, 2008. Revisiting the so-called "Paleophytic-Mesophytic" transition in equatorial Pangea: vegetational integrity and climatic tracking. Palaeogeography, Palaeoclimatology, Palaeoecology 268: 152-163

< 2007 >

DiMichele WA, Chaney DS, Nelson J, Lucas SG, Looy CV, Quick K, Quick M and Jun W, 2007. A low diversity, seasonal tropical landscape dominated by conifers and peltasperms: Early Permian Abo Formation, New Mexico. Review of Palaeobotany and Palynology145: 249-273.

Fenton S, Grice K, Twitchett RJ, Böttcher M, Looy CV and Nabbefield B, 2007. Changes in Biomarker Abundances and their Stable Carbon Isotopes across the Permian-Triassic (P-Tr) Schuchert Dal Section (East Greenland). Earth and Planetary Science Letter 262: 230-239.

Looy CV, 2007. Extending the range of derived Late Paleozoic conifers: Lebowskia gen. nov. (Majonicaceae). International Journal of Plant Sciences 168: 957–972.

< 2005 >

DiMichele WA, Van Konijnenburg-Van Cittert JHA, Looy CV and Chaney DS, 2005.Equisetites from the Early Permian of North-Central Texas. In: Lucas, S.G., Zeigler, K.E. (eds.), New Mexico Museum of Natural History and Science Bulletin30: 56-59.

Grice K, Twitchett RJ, Foster CB, Alexander R and Looy CV, 2005. A biomarker index for the Permian-Triassic ecological crisis. Earth and Planetary Science Letters 236: 315-321.

Looy CV, Collinson ME, Van Konijnenburg-Van Cittert JHA and Visscher H, 2005. The ultrastructure and botanical affinity of end-Permian spore tetrads. International Journal of Plant Sciences 166: 875-887.

Sephton MA, Looy CV, Brinkhuis H, Wignall PW, De Leeuw JW and Visscher H, 2005. Catastrophic soil erosion during the end-Permian biotic crisis. Geology 33: 941-944.

Sephton MA Looy CV, Visscher H, Brinkhuis H and De Leeuw JW, 2005. The combined petrographic and geochemical analysis of end Permian kerogens. In: Koeberl, C. and Henkel, H. (Eds.) Impact Tectonics, Springer, New York, pp. 467-478.

Watson JS, Sephton MA, Looy CV and Gilmour I, 2005. Oxygen-containing aromatic components in a Late Permian sediment. Organic Geochemistry 36: 371-384.

< 2004 >

Visscher H, Looy CV, Collinson ME, Brinkhuis H, Van Konijnenburg-Van Cittert JHA, Kürschner WM and Sephton MA, 2004. Environmental mutagenesis during the end-Permian ecological crisis. Proceedings National Academy of Science, USA 101: 12952-12956.

< 2002 >

De Wit MJ, Ghosh JG, De Villiers S, Rakotosolofo N, Alexander J, Tripathi A. and Looy CV, 2002. Multiple organic carbon isotope reversals across the Permo-Triassic boundary of terrestrial Gondwana sequences: clues to extinction patterns and delayed ecosystem recovery. Journal of Geology 110: 227-246.

Sephton MA, Looy CV, Veefkind R.J, Visscher H, Brinkhuis H and De Leeuw JW, 2002. Synchronous record of δ13C shifts in the oceans and atmosphere at the end of the Permian. Geological Society of America Special Paper 356: 455-462.


Looy CV, Twitchett RJ, Dilcher DL, Van Konijnenburg-Van Cittert JHA and Visscher H, 2001. Life in the end-Permian dead zone. Proceedings National Academy of Science, USA 98: 7879-7883.

Sephton MA, Veefkind RJ, Looy CV, Visscher H, Brinkhuis H and De Leeuw JW, 2001. Lateral variations in End-Permian organic matter in Northern Italy. In: Buffetaut E and Koeberl C (Eds). Geological and Biological Effects of Impact Events. Springer Verlag, Berlin: 11-24.

Twitchett RJ, Looy CV, Morante R, Visscher H and Wignall PB, 2001. Rapid and synchronous collapse of marine and terrestrial ecosystems during the end-Permian mass extinction event. Geology 29: 351-354.

Visscher H, Kerp JHF, Clement-Westerhof JA and Looy CV, 2001. Permian floras of the Southern Alps. Natura Bresciana 25: 117-123.

<2000 >

Looy CV, Van Konijnenburg-Van Cittert JHA and Visscher H, 2000. On the ecological success of isoetalean lycopsids after the end-Permian biotic crisis. LPP Contributions Series 13: 63-70.

< 1999 >

Looy CV, Brugman WA, Dilcher DL and Visscher H, 1999. The delayed resurgence of forests after the Permian-Triassic ecologic crisis. Proceedings National Academy of Science, USA 96: 13857-13862.

Sephton MA, Looy CV, Veefkind RJ, Visscher H, Brinkhuis H and De Leeuw JW, 1999. Cyclic diaryl ethers in a Late Permian sediment. Organic Geochemistry 30: 267-273.

Visscher H, Kerp JHF, Clement-Westerhof JA and Looy CV, 1999. Permian vegetation in the Southern Alps. In: Cassinis G., Cortesogno L., Gaggero L., Massari F., Neri C., Nicosia U. and Pittau P. (Eds). Stratigraphy and facies of the Permian deposits between eastern Lombardy and the western Dolomites, Earth Science Department Pavia, p. 139-147.

< 1997 >

Poort R, Clement-Westerhof JA, Looy CV and Visscher H, 1997. Conifer extinction in Europe at the Permian-Triassic junction: morphology, ultrastructure and geographic-stratigraphic distribution of Nuskoisporites dulhuntyi (prepollen of Ortiseia, Walchiaceae). Review of Palaeobotany and Palynology 97: 9-39.

< 1996 >

Visscher H, Brinkhuis H, Dilcher DL, Elsik WC, Eshet Y, Looy CV, Rampino MR and Traverse A, 1996. The terminal Palaeozoic fungal event: evidence of terrestrial ecosystem destabilization and collapse. Proceedings National Academy of Science, USA 93: 2155-2158.

< 1992 >

Looy CV and Wijgergangs J, 1992. Waterhyacinth (Eichhornia crassipes (Mart.) Solms) and water quality in Kerinci, Maninjau and Sinkarak lakes, Sumatra. PHPA/Asian Wetland Bureau, Sumatra Wetland Project Report 38, 65 pp.