the Mississippium is a geological Sub period carbon, which is divided into the anglo-saxon linguistic area. It lasted from 359,2 to 318.1 mya. It is dated on the basis Gesteinsformationen, which are opened today by the Mississippi and numerous fossils contained.
The carbon divides into two Subperioden, whereby the Mississippium lying, which is hanging Pennsylvanium.
The name Mississippium was sign-brightly suggested to 1869 by the American geologist Alexander. It in America layers of limestone, 1891 became the Mississippium of H enclosure. S. Williams the char-rich layers of the Pennsylvaniums confronted. This organization is not ident however with the earlier organization into under and upper carbon into Europe.
Originally the Mississippium was into America divided in Waverley and threshing floor lake, now it internationally divided in Tournais, Visé, and Serpukhov.
The beginning of the carbon and thus Mississippi around is marked by the occurrence of Trilobiten such as Belgibole, Archegonus and Carbonocoryphe. This guidancefossil are well-known from the early layers of the carbon in France, Austria, Germany and Poland. But the Trilobiten was continued to reduce in the run Mississippi around in its diversity of species.
layers and age
- upper Mississippium (=Serpukhov) (326.4 - 318.1 million years)
- middle Mississippium (=Visé) (345.3 - 326.4 million years)
- lower Mississippium (=Tournais) (359.2 - 345.3 million years)
under it the Devonian [
Europe and North America into only one continent had merged, on the south continent Gondwana too drifted.