JOYCE, Walter G.; REVAN, Ariel; LYSON, Tyler R.; DANILOV, Igor G. Two New Plastomenine Softshell Turtles from the Paleocene of Montana and Wyoming. Bulletin of the Peabody Museum of Natural History. 2009-10-01, Volume 50, Issue 2, s. 307–325. Dostupné online. ISSN0003-0090. doi:10.3374/014.050.0202. (anglicky)
iucn-tftsg.org
MEYLAN, Peter Andre. The phylogenetic relationships of soft-shelled turtles (family Trionychidae). Bulletin of the American Museum of Natural History [online]. 1987-06-26. Volume 186, Article 1. Dostupné online. ISSN0003-0090. (anglicky)
mrfdigs.com
JOYCE, Walter G.; REVAN, Ariel; LYSON, Tyler R.; DANILOV, Igor G. Two New Plastomenine Softshell Turtles from the Paleocene of Montana and Wyoming. Bulletin of the Peabody Museum of Natural History. 2009-10-01, Volume 50, Issue 2, s. 307–325. Dostupné online. ISSN0003-0090. doi:10.3374/014.050.0202. (anglicky)
phys.org
UNGER BAILLIE, Katherine. Newly identified softshell turtle lived alongside T. rex and Triceratops. phys.org [online]. 2022-03-11. Dostupné online. (anglicky)
worldcat.org
MEYLAN, Peter Andre. The phylogenetic relationships of soft-shelled turtles (family Trionychidae). Bulletin of the American Museum of Natural History [online]. 1987-06-26. Volume 186, Article 1. Dostupné online. ISSN0003-0090. (anglicky)
JOYCE, Walter G.; REVAN, Ariel; LYSON, Tyler R.; DANILOV, Igor G. Two New Plastomenine Softshell Turtles from the Paleocene of Montana and Wyoming. Bulletin of the Peabody Museum of Natural History. 2009-10-01, Volume 50, Issue 2, s. 307–325. Dostupné online. ISSN0003-0090. doi:10.3374/014.050.0202. (anglicky)