Boverisuchus

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Boverisuchus is an extinct genus of planocraniid crocodyliforms known from the early to middle Eocene (Ypresian to Lutetian stages) of Germany and western North America. It was a relatively small crocodyliform with an estimated total length of approximately 2.2–3.6 metres (7.2–11.8 ft) and a weight of around 100 kilograms (220 lb). The type species Boverisuchus magnifrons was first named by paleontologist Oskar Kuhn in 1938, from the Lutetian of Germany alongside Weigeltisuchus geiseltalensis. Most paleontologists have considered both species to represent junior synonyms of the type species of Pristichampsus, P. rollinatii. Following a revision of the genus Pristichampsus by Brochu (2013), P. rollinati was found to be based on insufficiently diagnostic material and therefore is a nomen dubium while Boverisuchus was reinstated as a valid genus. Brochu (2013) also assigned Crocodylus vorax, which has been referred to as Pristichampsus vorax since Langston (1975), as the second species of Boverisuchus. According to Brochu (2013), material from the middle Eocene of Italy and Texas may represent another yet unnamed species. The two Asian species of Planocrania were found to be most closely related to Boverisuchus using a phylogenetic analysis. The name Planocraniidae was reinstated to contain these genera and replace Pristichampsidae. Phylogenetic analyses based purely on morphological data have generally placed Planocraniidae in a basal position within the crocodilian crown group.