Jessica Hope Whiteside and Paul Eric Olsen


Berner, R.A. 1991. A model for atmospheric CO2 over Phanerozoic time. American Journal of Science, v. 291, p. 339-376,

Beerling, D.J., and Jolley, D.W. 1998. Fossil plants record an atmospheric 12 CO2 and temperature spike across the Palaeocene-Eocene transition in NW Europe. Journal of the Geological Society, London, v. 155, p. 591-594.

Beerling, D.J., McElwain, J.C., and Osborne, C.P. 1998. Stomatal responses of the │living fossil▓ Gikgo biloba L. to changes in atmospheric CO2 concentrations. Journal of Experimental Botany, v. 49, p. 1603-1607.

Cornet, B. and Traverse, A., 1975. Palynological contributions to the chronology and stratigraphy of the Hartford basin in Connecticut and Massachusetts. Geoscience and Man, v. 11, p. 1-33.

Cornet, B. 1977. The Palynostratigaphy and Age of the Newark Supergroup. Ph.D. Thesis, Department of Geology, The Pennsylvania State University, State College, PA, p. 165-172, p. 192-222.

Ferris, R. and Taylor, G. 1994. Stomatal characteristics of four native herbs following exposures to elevated CO2. Annals of Botany, v. 73, p. 447-453.

Fowell, SJ. 1994. Palynology of Triassic-Jurassic boundary sections from the Newark Supergroup of Eastern North America: Implications for catastrophic extinction scenarios. Ph.D thesis, Columbia University NY, 154 p.

Harris, T.M., 1931. The fossil flora of Scoresby Sound East Greenland. Meddelelser om Grěnlad, v. 112, 114 p. In Cornet, B. Clathropteris meniscoides (Brongniart) Brongniart, Associated spores and Equisetites from the Newark Supergroup of Massachusetts, USA. Unpublished ms. 33 p.

Hesselbo, S.P., Robinson, S.A., Surlyk, F., and Piasecki, S. 2002. Terrestrial and marine extinction at the Triassic-Jurassic boundary synchronized with major carbon-cycle perturbation: a link to initiaion of massive volcanism? Geology v. 30, p. 251-254.

Hitchcock, E., Jr. 1855. Description of a new species of Clathropteris discovered in the Connecticut Valley Sandstone. American Journal of Science, v. 20, p. 22-25.

Malone, S.R., Mayeux, H.S., Johnson, H.B., and Polley, H.W. 1993. Stomatal density and aperture length in four plant species grown across a subambient gradient. American Journal of Botany, v. 80, p. 1413-1418.

McElwain, J.C., Mitchell, F.J.G., and Jones, M.B. 1995. Relationship of stomatal density and index of Salix cinerea to atmospheric carbon dioxide concentration in the Holocene. Holocene, v. 5, p. 216-220.

McElwain, J.C., Beerling, D.J., and Woodward, F.I. 1999. Fossil plants and global warming at the Triassic-Jurassic boundary. Science, v. 285, p.1386-1390.

Olsen, P.E., Kent, D.V., Sues, H.D., Koeberl, C., Huber, H., Montanari, A., Rainforth, E.C., Fowell, S.J., Szajna, M.J., Hartline, B.W. 2002. Ascent of dinosaurs linked to Ir anomaly at Triassic-Jurassic boundary. Science, v. 296, p. 1305-1307.

Olsen, P.E., Kent, D. V., Et-Touhami, M., and Puffer, J. H., 2003, Cyclo-, magneto-, and bio-stratigraphic constraints on the duration of the CAMP event and its relationship to the Triassic-Jurassic boundary, in Hames, W.E., McHone, J.G., Renne, P.R, Ruppel, C. (eds.), The Central Atlantic Magmatic Province: Insights From Fragments of Pangea, Geophysical Monograph Series, v. 136, p. 7-32.

Vakhrameev, V.A. 1991. Jurassic and Cretaceous floras and climates of the Earth. Cambridge University Press, 318 p.

Visscher, H. 1994. Links with the past in the plant world: cuticles as recorders of diversity, kerogen formation and palaeoatmospheric CO2 level. Palaeobotanist, v. 42, p. 86-92.

Ward, P.D., Haggart, J.W., Carter, E.S., Wilbur, D., Tipper, H.W., and Evans, T. 2001. Sudden productivity collapse associated with the Triassic-Jurassic Mass Extinction. Science v. 292, p. 1148-1151.

Whiteside, J.H., and Olsen, P.E. 2003. Possible Triassic-Jurassic boundary sections, Hartford Basin, Eastern North America. In Geological Society of America, Abstracts with Programs, v. 35, p. 84.

Woodward, F.I. 1987. Stomatal numbers are sensitive to increases in CO2 from preindustrial levels. Nature, v. 327, p. 617-618.