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Kallakurichi Formation
The Kallakurichi Formation, alternatively spelled as Kallankurichchi or Kallankurichi Formation,Kallankurichchi Formation at Fossilworks.org is a geological formation of the Ariyalur Group in Tamil Nadu, South India, southern India whose strata date back to the Maastrichtian stage of the Late Cretaceous. Dinosaur eggs of ''Megaloolithus, Megaloolithus cylindricus'' are among the fossils that have been recovered from the sandy limestones of the formation.Weishampel et al., 2004, pp.593-600 Fossil content The following fossils were reported from the formation:Dinosaurs ;Ornithischian ;Sauropods ;TheropodsMolluscas ...
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Geological Formation
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] |
