Caipirasuchus is an extinct genus of sphagesaurid notosuchians known from the Late Cretaceous of northern São Paulo State and western Minas Gerais State, southeastern Brazil. The type species, C. paulistanus, was named in 2011. A second species, C. montealtensis, was referred to Caipirasuchus in 2013 after having been named in 2008 as a species of Sphagesaurus. A third species, C. stenognathus, was described in 2014. A fourth species, C. mineirus, was described in 2018. A fifth species, C. attenboroughi, was named in 2021 in honour of David Attenborough, and a sixth species, C. catanduvensis,
Caipirasuchus is an extinct genus of sphagesaurid notosuchians known from the Late Cretaceous of northern São Paulo State and western Minas Gerais State, southeastern Brazil. The type species, C. paulistanus, was named in 2011. A second species, C. montealtensis, was referred to Caipirasuchus in 2013 after having been named in 2008 as a species of Sphagesaurus. A third species, C. stenognathus, was described in 2014. A fourth species, C. mineirus, was described in 2018. A fifth species, C. attenboroughi, was named in 2021 in honour of David Attenborough, and a sixth species, C. catanduvensis, was described in 2024, with a distinct chamber associated with the airways, possibly used in vocalization.
==Discovery and naming== thumb|left|Mandibular symphysis of the first three named species Caipirasuchus was first named by Fabiano V. Iori and Ismar S. Carvalho in 2011 and the type species is C. paulistanus. The generic name is derived from Tupi word Caipira which refers to the traditional inhabitants of interior of São Paulo, covering almost all of the Bauru Basin, and Greek souchus meaning "crocodile". The specific name is derived from "Paulista", the designation for the residents of São Paulo State, where the holotype was found.
Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).