The Itapecuru Formation is a geological formation in Itapecuru Mirim, Maranhão, Brazil.

Itapecuru Formation
Stratigraphic range: Aptian-Cenomanian
~120–95 Ma
TypeGeological formation
UnderliesAlluvium & Corda Formation
OverliesCodó, Grajaú & Piauí Formations
Thicknessup to 2,000 m (6,600 ft) in São Luís Basin
700 m (2,300 ft) in Parnaíba Basin
Lithology
PrimaryMudstone, sandstone
OtherBreccia, diamictite
Location
Coordinates3°23′30″S 44°21′30″W / 3.39167°S 44.35833°W / -3.39167; -44.35833
Approximate paleocoordinates8°36′S 15°54′W / 8.6°S 15.9°W / -8.6; -15.9
RegionItapecuru Mirim
 Maranhão
Country Brazil
ExtentSão Luís & Parnaíba Basins
Type section
Named forItapecuru Mirim
Itapecuru Formation is located in Brazil
Itapecuru Formation
Itapecuru Formation (Brazil)

It was formed during the Aptian to Albian stages of the Early Cretaceous.[1] Dinosaur remains are among the fossils that have been recovered from the formation.[2]

Vertebrate paleofauna

edit

See also

edit

References

edit
  1. ^ Ferreira, Neila N.; Ferreira, Elizabete P.; Ramos, Renato R.C.; Carvalho, Ismar S. (2016). "Palynological and sedimentary analysis of the Igarapé Ipiranga and Querru 1 outcrops of the Itapecuru Formation (Lower Cretaceous, Parnaíba Basin), Brazil". Journal of South American Earth Sciences. 66: 15–31. Bibcode:2016JSAES..66...15F. doi:10.1016/j.jsames.2015.12.005. ISSN 0895-9811.
  2. ^ a b c d e 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. ISBN 0-520-24209-2.
  3. ^ Candidodon itapecuruense type locality at Fossilworks.org
  4. ^ Batista, 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