Primarily Guy’s research has centred around biological responses to the Paleocene-Eocene Thermal Maximum (PETM) with emphasis on vegetation and environment changes to rapid global warming ≈55.8 Ma from North America (Bighorn Basin (WY), Williston Basin (ND), Ellesmere Island and the eastern and western US Gulf Coast).
This work continues from 2010-2012 through supervision of Dr Jiřina Dašková (EU Marie Curie Fellowship) on PEX: Testing for plant extinction across the Paleocene-Eocene boundary. Participation is also ongoing and active in the BBCP (Bighorn Basin Coring Project) through a subaward from the National Science Foundation ($106,000) from 2011 – 2013 to examine floral trends through the PETM with a large US-led consortium of universities.
Harrington, G.J 2010. Macroecology in Deep Time. Palaeontology.53:1201.
Harrington, G.J. 2008. Palaeocene-Eocene paratropical swamp palynofloras from Alabama and Mississippi, USA. Palaeontology v. 51: 611-622.
Harrington, G.J. & Jaramillo, C.A. 2007. Paratropical floral extinction in the Late Palaeocene–Early Eocene. Journal of the Geological Society of London v. 164: 323-332.
Wing, S.L., Harrington, G.J., Smith, F.A., Bloch, J.I, Boyer, D.M. & Freeman, K.H. 2005.Transient floral change and rapid global warming at the Paleocene-Eocene boundary.Science v. 310: 993–996.
Harrington, G.J., Clechenko, E.R & Kelly, D.C. 2005.Palynology and organic-carbon isotope ratios across a terrestrial Palaeocene/Eocene boundary section in the Williston Basin, North Dakota, USA. Palaeogeography Palaeoclimatology Palaeoecology v. 226: 214-232.
Harrington, G.J., Kemp, S.J., & Koch, P.L. 2004. Palaeocene–Eocene paratropical floral changes in North America: responses to climate change and plant immigration. Journal of the Geological Society of London. v. 161: 173–184.
Harrington, G.J. 2004. Structure of the North American vegetation gradient during the Late Paleocene/early Eocene warm climate. Evolutionary Ecology Research v. 6: 33–48
Harrington, G.J. 2003a. Wasatchian (early Eocene) pollen floras from the Red Hot Truck Stop, Mississippi, USA. Palaeontology v. 46: 725–738.
Wing, S.L. and Harrington, G.J. 2001. Floral response to rapid warming at the Paleocene/Eocene boundary and implications for concurrent faunal change. Paleobiology, v. 27(3): 539–563
Harrington, G.J. 2001. Impact of Paleocene/Eocene greenhouse warming on North American paratropical forests. Palaios, v. 16: 266–278