Captorhinid reptiles from the lower Permian Pedra de Fogo Formation, Piauí, Brazil: the earliest herbivorous tetrapods in Gondwana by Juan C. Cisneros, Kenneth Angielczyk, Christian F. Kammerer, Roger M.H. Smith, Jörg Fröbisch, Claudia A. Marsicano, Martha Richter

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A new therocephalian (Gorynychus masyutinae gen. et sp. nov.) from the Permian Kotelnich locality, Kirov Region, Russia by Christian F. Kammerer, Vladimir Masyutin

“…However, other aspects of the Kotelnich fauna, and Permian Russian tetrapod faunas in general, differ markedly from those of South Africa and suggest that Karoo faunas are not necessarily representative of global patterns.…”
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The earliest segmental sternum in a Permian synapsid and its implications for the evolution of mammalian locomotion and ventilation by Eva-Maria Bendel, Christian F. Kammerer, Zhe-Xi Luo, Roger M. H. Smith, Jörg Fröbisch

“…Abstract The sternum is a stabilizing element in the axial skeleton of most tetrapods, closely linked with the function of the pectoral girdle of the appendicular skeleton. …”
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