My present research involves the footprints
of the Late Triassic-Early Jurassic Newark Supergroup. These strata were
deposited in rift basins which formed when Pangea began to break up - the
rifts are preserved along the central Atlantic margin (CAM) in eastern
North America as well as North Africa and south-west Europe. Lacustrine
environments predominate; lake level fluctuated with climate (~ humidity/aridity),
which varied cyclically due to orbital forcing mechanisms.These Milankovitch-type
cycles, combined with the magnetic reversal stratigraphy, and aided by
paleontological markers ("spore spike" at the Triassic-Jurassic boundary)
and lithostratigraphic markers (flood basalts, erupted over ~ 600ky), enable
high-resolution (<20 ky) stratigraphic correlation.
1. Taxonomy of footprints attributed to theropod dinosaurs:
Grallator, Anchisauripus, Eubrontes, Otouphepus,
Gigandipus, et alia.
2. Biostratigraphy and biogeography, primarily using footprints.
Newark Basin reference section.
Faunal change, especially across the Triassic-Jurassic boundary.
Comparison with other CAM basins at different paleolatitudes
- geographic/climatic variation?