A supertree of temnospondyli: cladogenetic patterns in the most species-rich group of early tetrapods. by Ruta, M, Pisani, D, Lloyd, G, Benton, M

“…Numerous shifts bracket narrowly the end-Permian extinction, indicating not only rapid recovery and extensive diversification of temnospondyls over a short time period after the extinction event (possibly less than half a million years), but also the role of intense cladogenesis in the late part of the Permian (although this was counteracted by numerous 'background' extinctions).…”

The shape and temporal dynamics of phylogenetic trees arising from geographic speciation. by Pigot, A, Phillimore, AB, Owens, I, Orme, C

“…In this study, we develop a spatially explicit model of geographic range evolution and cladogenesis, where speciation arises via vicariance or peripatry, and explore the effects of these processes on patterns of diversification. …”