Missão Velha
Description
Source: Wikipédia
The Missão Velha Formation is a late Jurassic geologic formation in northeastern Brazil's Araripe Basin where the states of Pernambuco, Piauí and Ceará come together. The formation is the middle stratigraphic unit of the Vale do Carirí Group, overlying the Brejo Santo Formation and overlain by the Abaiara Formation.
The formation comprises whitish fine-to-medium quartzose arenites, with subrounded to rounded grains, deposited in an alluvial fan environment during the syn-rift phase of the Araripe Basin.
The Missão Velha Formation has provided macrofossils of various genera of fish and reptiles as snakes, crocodylomorphs and turtles. Ichnofossils of dinosaurs were also discovered in the formation, as well as a tooth from an abelisaurid theropod.
Découvertes
Source: The Paleobiology Database
Site(s) correspondant(s) à cette formation: 2
Porteiras, Missão Velha : Ceará - ? Publication(s)
La base comprend 3 publication(s).
Source: The Paleobiology Database
- ↑1 2 P. M. Brito, R. J. Bertini, and D. M. Martill, L. O. Salles. 1994. Vertebrate fauna from the Missão Velha Formation (Lower Cretaceous, N.E. Brazil). Boletim do 3° sobre o Cretáceo do Brasil, Campus de Rio Claro/SP, UNESP
- ↑1 2 I. d. S. Carvalho, M. S. S. Viana, and M. F. d. L. Filho. 1995. Os icnofósseis de dinossauros da Bacia do Araripe (Crétaceo Inferior, Ceará-Brasil) [Dinosaur ichnofossils from the Araripe Basin (Lower Cretaceous, Ceará, Brazil)]. Anais da Academia Brasileira de Ciências 67(4):433-442
- ↑1 I. d. S. Carvalho. 2004. Dinosaur footprints from northeastern Brazil: taphonomy and environmental setting. Ichnos 11(3–4):311-321 (https://doi.org/10.1080/10420940490442368)