Tuira Formation
The Tuira Formation is a Formation (geology), geologic formation in Panama. It preserves bivalve, gastropod and sponge fossils dating back to the Tortonian Period (geology), period (Clarendonian to Hemphillian in the North American land mammal age, NALMA classification), from 11 to 9.5 Ma.Aguilera et al., 2017, p.5Tuira Formation
at Fossilworks.org

Fossil content

Among others, the following fossils have been reported from the formation: * ''Monoplex panamensis''Beu, 2010, p.156 * ''Umbrina opima''Aguilera et al., 2016 * ''Ogilbichthys dariensis''Schwarzhans & Aguilera, 2016

Formation (stratigraphy)
A geological formation, or simply formation, is a body of rock having a consistent set of physical characteristics (lithology) that distinguishes it from adjacent bodies of rock, and which occupies a particular position in the layers of rock exposed in a geographical region (the stratigraphic column). It is the fundamental unit of lithostratigraphy, the study of strata or rock layers. A formation must be large enough that it can be mapped at the surface or traced in the subsurface. Formations are otherwise not defined by the thickness (geology), thickness of their rock strata, which can vary widely. They are usually, but not universally, tabular in form. They may consist of a single lithology (rock type), or of alternating beds of two or more lithologies, or even a heterogeneous mixture of lithologies, so long as this distinguishes them from adjacent bodies of rock. The concept of a geologic formation goes back to the beginnings of modern scientific geology. The term was used by ...
[...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu]

Fossil content

See also