| Type | Geological formation |
| Age | Late Cretaceous |
| Lithology | |
| Location | |
| Region | South America |
The Lecho Formation is a geological formation in Argentina whose strata date back to the Late Cretaceous. Dinosaur remains are among the fossils that have been recovered from the formation.[1]
According to Frankfurt and Chiappe (1999), the Lecho Formation is located in northwestern Argentina and is composed of reddish sandstones. The Lecho is part of the Upper/Late Cretaceous Balbuena Subgroup (Salta Group), which is a near-border stratigraphic unit of the Andean sedimentary basin. The paleoenvironment was a fluvio-lacustrine coastal plain. This formation is noteworthy for containing fossils of a nonavian theropod - an oviraptorid - which helps to support evidence for the presence of the oviraptorosaur clade in the southern continents.[2]
See also[]
References[]
- ^ 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.
- ^ Frankfurt, N.G., and L.M. Chiappe (1999). "A Possible Oviraptorosaur From The Late Cretaceous of Northwestern Argentina," Journal of Vertebrate Paleontology, 19(1): 101-105.
