An assessment of the meaning and role of uniformitarianism in natural history is demanded by: (1) the confusion it has generated for nearly two centuries, (2) the recent revolution in geology that has rejected traditional uniformitarianism in favor of neocatastrophism, and (3) the accusation by some who embrace neocatastrophism that diluvialists—failing to understand nuances of uniformitarianis...

Uniformitarian geology has opposed biblical history for over two centuries. Most creationist critiques focus on contrary empirical evidence, but this series pursues a logical and axiomatic critique of the “four-definition” formulation of uniformitarianism. Three of these facets—stasis, gradualism, and generic uniformity—fail to support the concept. The remaining “uniformity of process,” also ca...

I present a new compilation of the distribution of the temporal distribution of new morphologies of marine invertebrates associated with the Ediacaran-Cambrian (578-510 Ma) diversification of Metazoa. Combining this data with previous work on the hierarchical structure of gene regulatory networks, I argue that the distribution of morphologies may be, in part, a record of the time-asymmetric gen...

Makapansgat Limeworks Cave is a well-known Australopithecus africanus bearing locality that has spawned a considerable amount of paleoecological research because of its hominin component. Most recently, the paleoecology of this Plio–Pleistocene site has been studied by determining the diet and habitat of other extinct taxa, particularly the bovids. The diets of seven bovids (Aepyceros sp., Gaze...