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Previous Projects: Stable Carbon Isotopes

Karen Bacon’s research focused on fossil plants found across the Triassic–Jurassic boundary in East Greenland and included investigations on plant morphology, species composition, biodiversity and phenotypic evolution.

The main focus of this research was an examination of plant genus turnover and biodiversity changes across the Triassic–Jurassic boundary (TJB) in Jameson Land, East Greenland.  This involved the construction of a plant genus, and where possible plant species, database that also contains information on morphological characteristics, such as leaf shape and leaf size, that may help to identify possible causal mechanisms for ecological turnover at this time.  This database includes information on plant fossils from four locations in East Greenland, and the eventual aim is to construct a region-wide database.  This database will include information on both the taxa present at each location and the morphological characteristics of each fossil specimen examined.

Karen is also interested in the use of stable carbon isotopes in palaeobotany and has constructed a high resolution dataset of the changes in stable carbon isotope composition of the atmosphere across the TJB bed in one of the Greenland sites.  Karen intends to extend this to the other Greenland sites in the near future.

 

 






 



UCD Plant Palaeoecology and Palaeobiology Group Updated: July 2013
Professor J.C. McElwain