DiMichele W.A., Tabor N.J., and Kerp J.H.F, and Looy, C.V., in press. Revisiting the so-called "Paleophytic-Mesophytic" transition in equatorial Pangea: vegetational integrity and climatic tracking. Palaeogeography, Palaeoclimatology, Palaeoecology.


DiMichele W.A., Chaney D.S., Nelson J., Lucas S.G., Looy C.V., 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 Palynology 145: 249-273.

Fenton S., Grice K., Twitchett R.J., Böttcher M., Looy C.V., 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 C.V., 2007. Extending the range of derived Late Paleozoic conifers: Lebowskia gen. nov. (Majonicaceae). International Journal of Plant Sciences 168: 57–972.


DiMichele W.A., Van Konijnenburg-Van Cittert J.H.A., Looy C.V. and Chaney D.S., 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 Bulletin 30, 56-59.

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

Looy C.V. , Collinson M.E, Van Konijnenburg-Van Cittert J.H.A. and Visscher, H., 2005. The ultrastructure and botanical affinity of end-Permian spore tetrads. International Journal of Plant Sciences, 166: 875-887.

Sephton M.A., Looy C.V., Brinkhuis H., Wignall, P.W., De Leeuw J.W., and Visscher, H., 2005. Catastrophic soil erosion during the end-Permian biotic crisis. Geology 33: 941-944.

Sephton M.A., Looy C.V., Visscher H., Brinkhuis H. and De Leeuw J.W., 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 J.S., Sephton M.A., Looy C.V. and Gilmour I., 2005. Oxygen-containing aromatic components in a Late Permian sediment. Organic Geochemistry 36: 371-384.



De Wit M.J., Ghosh J.G., De Villiers S., Rakotosolofo N., Alexander J., Tripathi A. and Looy C.V., 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 M.A., Looy C.V., Veefkind R.J., Visscher H., Brinkhuis H. and De Leeuw J.W., 2002. Synchronous record of δ 13 C shifts in the oceans and atmosphere at the end of the Permian. Geological Society of America Special Paper 356: 455-462.


Sephton M.A., Veefkind R.J., Looy C.V., Visscher H., Brinkhuis H. and De Leeuw J.W., 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 R.J., Looy C.V., Morante R., Visscher H. and Wignall P.B., 2001. Rapid and synchronous collapse of marine and terrestrial ecosystems during the end-Permian mass extinction event. Geology 29: 351-354.

Visscher H., Kerp J.H.F., Clement-Westerhof J.A. and Looy C.V., 2001. Permian floras of the Southern Alps. Natura Bresciana 25: 117-123.


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


Sephton M.A., Looy C.V., Veefkind R.J., Visscher H., Brinkhuis H. and De Leeuw J.W., 1999. Cyclic diaryl ethers in a Late Permian sediment. Organic Geochemistry 30: 267-273.

Visscher H., Kerp J.H.F., Clement-Westerhof J.A. and Looy C.V. ,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.


Poort R., Clement-Westerhof J.A., Looy C.V. 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.



Looy C.V . 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.