Some systematists have asserted that stratigraphy is not a "trustworthy guide" to the relative ancestry of taxa, and that phylogenetic inference should be based solely on comparative morphology. Yet ...

Robert V. Demicco, Jason Smith 1, Sedimentologic Observation and Stratigraphic Interpretation of the Lower Devonian (Lochkovian) Manlius Formation along the Mohawk River Valley in Upstate New York, ...