Zambito J.J. IV.; Benison K.C (2013). "Extreme high temperatures and paleoclimate trends recorded in Permian ephemeral lake halite". Geology. 41 (5): 587–590. Bibcode:2013Geo....41..587Z. doi:10.1130/G34078.1.
Xiong, C.; Wang, Q. (2011). "Permian–Triassic land-plant diversity in South China: Was there a mass extinction at the Permian/Triassic boundary?". Paleobiology. 37 (1): 157–167. doi:10.1666/09029.1. S2CID54637358.
Cascales-Minana, B.; Diez, J.B.; Gerrienne, P.; Cleal, C.J. (2015). "A palaeobotanical perspective on the great end-Permian biotic crisis". Historical Biology. 28 (8): 1066–1074. doi:10.1080/08912963.2015.1103237. S2CID84091438.
Brocklehurst, N.; Kammerer, C. F.; Fröbisch, J. (2013). "The early evolution of synapsids, and the influence of sampling on their fossil record". Paleobiology. 39 (3): 470–490. doi:10.1666/12049. S2CID83738138.
Modesto, Sean P.; Smith, Roger M. H.; Campione, Nicolás E. & Reisz, Robert R. (2011). "The last "pelycosaur": a varanopid synapsid from the Pristerognathus Assemblage Zone, Middle Permian of South Africa". Naturwissenschaften. 98 (12): 1027–34. Bibcode:2011NW.....98.1027M. doi:10.1007/s00114-011-0856-2. PMID22009069. S2CID27865550.
Zambito J.J. IV.; Benison K.C (2013). "Extreme high temperatures and paleoclimate trends recorded in Permian ephemeral lake halite". Geology. 41 (5): 587–590. Bibcode:2013Geo....41..587Z. doi:10.1130/G34078.1.
Modesto, Sean P.; Smith, Roger M. H.; Campione, Nicolás E. & Reisz, Robert R. (2011). "The last "pelycosaur": a varanopid synapsid from the Pristerognathus Assemblage Zone, Middle Permian of South Africa". Naturwissenschaften. 98 (12): 1027–34. Bibcode:2011NW.....98.1027M. doi:10.1007/s00114-011-0856-2. PMID22009069. S2CID27865550.
Modesto, Sean P.; Smith, Roger M. H.; Campione, Nicolás E. & Reisz, Robert R. (2011). "The last "pelycosaur": a varanopid synapsid from the Pristerognathus Assemblage Zone, Middle Permian of South Africa". Naturwissenschaften. 98 (12): 1027–34. Bibcode:2011NW.....98.1027M. doi:10.1007/s00114-011-0856-2. PMID22009069. S2CID27865550.
Xiong, C.; Wang, Q. (2011). "Permian–Triassic land-plant diversity in South China: Was there a mass extinction at the Permian/Triassic boundary?". Paleobiology. 37 (1): 157–167. doi:10.1666/09029.1. S2CID54637358.
Cascales-Minana, B.; Diez, J.B.; Gerrienne, P.; Cleal, C.J. (2015). "A palaeobotanical perspective on the great end-Permian biotic crisis". Historical Biology. 28 (8): 1066–1074. doi:10.1080/08912963.2015.1103237. S2CID84091438.
Brocklehurst, N.; Kammerer, C. F.; Fröbisch, J. (2013). "The early evolution of synapsids, and the influence of sampling on their fossil record". Paleobiology. 39 (3): 470–490. doi:10.1666/12049. S2CID83738138.
Modesto, Sean P.; Smith, Roger M. H.; Campione, Nicolás E. & Reisz, Robert R. (2011). "The last "pelycosaur": a varanopid synapsid from the Pristerognathus Assemblage Zone, Middle Permian of South Africa". Naturwissenschaften. 98 (12): 1027–34. Bibcode:2011NW.....98.1027M. doi:10.1007/s00114-011-0856-2. PMID22009069. S2CID27865550.