ABSTRACT

A database of 149 Permian South American brachiopod genera from 13 localities were subjected to cluster, probabilistic similarity, and parsimony analysis, in order to detect differential patterns. These were compared to data from North American localities as far north as Axel Heiberg Island, Canada. Results are broadly congruent, showing heterogeneous distribution patterns paralleling paleolatitudes, supporting further use of multiple analytical methods for paleobiogeographic reconstruction.