Chapter

Morphological Change through Time

Mark E. Patzkowsky and Steven M. Holland

in Stratigraphic Paleobiology

Published by University of Chicago Press

Published in print April 2012 | ISBN: 9780226649375
Published online February 2013 | e-ISBN: 9780226649399 | DOI: http://dx.doi.org/10.7208/chicago/9780226649399.003.0007
Morphological Change through Time

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This chapter focuses on the analysis of microevolutionary patterns in morphology in the context of sequence architecture. The investigation of morphological evolution requires the analysis of multiple samples from individual stratigraphic sections, with the hope that those samples reflect the true morphological history. The fossil record contains a rich history of morphological change in lineages, and numerous case studies have examined patterns of morphological change in stratigraphic sections to characterize the tempo and mode of evolution. The distorting effects of variations in sedimentation rate on patterns of morphological change can be mitigated by estimating sedimentation rates through a stratigraphic section. Hannisdal recognized that extracting true patterns of evolutionary change from the distorted stratigraphic record could be treated as an inverse problem, where parameters describing evolutionary change are extracted from data that record not just true evolutionary change but also processes of sediment accumulation.

Keywords: microevolutionary patterns; morphology; morphological evolution; stratigraphic sections; fossil record; morphological change; tempo

Chapter.  5427 words.  Illustrated.

Subjects: Palaeontology

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