The Itapecuru Formation is a geological formation in Itapecuru Mirim, Maranhão, Brazil.
It was formed during the Aptian to Albian stages of the Early Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.Weishampel, David B; et al. (2004). "Dinosaur distribution (Late Cretaceous, South America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 600-604. .
Fossil content
Dinosaurs
Sauropods Sauropods of the Itapecuru Formation Genus Species Location Stratigraphic position Material Notes Images Amazonsaurus A. maranhensis A rebbachisaurid sauropodDasosaurusD. tocantinensisLower A partial skeleton A somphospondylian sauropod Sauropoda indet. Indeterminate
Theropods Theropods of the Itapecuru Formation Genus Species Location Stratigraphic position Material Notes Images Abelisauridae Indet. Indeterminate A abelisaurid theropod Giganotosaurini Indet. Indeterminate Tooth A giganotosaurin carcharodontosaurine; closely related to Giganotosaurus carolinii and Mapusaurus rosae. Theropoda indet. Indeterminate
Crocodylomorphs Crocodylomorphs of the Itapecuru Formation Genus Species Location Stratigraphic position Material Notes Images CandidodonCandidodon itapecuruense type locality at Fossilworks.org C. itapecuruense A candidodontid notosuchian
Mosasaurs Mosasaurs of the Itapecuru Formation Genus Species Location Stratigraphic position Material Notes Images Mosasauridae Indet. Indeterminate An indeterminate mosasaurid
Plesiosaurs Plesiosaurs of the Itapecuru Formation Genus Species Location Stratigraphic position Material Notes Images Brachaucheninae Indet. Indeterminate A brachauchenine thalassophonean
Turtles Turtles of the Itapecuru Formation Genus Species Location Stratigraphic position Material Notes Images Araripemys A. barretoi A araripemydid side-necked turtle ItapecuruemysBatista, Diego L.; de Sousa Carvalho, I.; de la Fuente, M.S. (2020). "A new Cretaceous (Pleurodira: Pelomedusoides) from the Lower Cretaceous of Parnaíba Basin, Brazil": Journal of South American Earth Sciences. https://doi.org/10.1016/j.jsames.2020.102872 I. amazoniensis A cearachelyin bothremydine
Fish Fishes of the Itapecuru Formation Genus Species Location Stratigraphic position Material Notes Images Arganodus A. tiguidiensis A arganodontid lungfish Ceratodus C. africanus A ceradodontid lungfish Mawsonia M. gigas A mawsoniid coelacanth
See also
List of dinosaur-bearing rock formations
References