Langhian [SEP] named after
Langhian
The Langhian is, in the ICS geologic timescale, an age or stage in the middle Miocene epoch/series. It spans the time between 15.97 ± 0.05 Ma and 13.65 ± 0.05 Ma (million years ago) during the Middle Miocene.
The Langhian was a continuing warming period defined by Lorenzo Pareto in 1865, it was originally established in the Langhe area north of Ceva in northern Italy, hence the name. The Langhian is preceded by the Burdigalian and followed by the Serravallian stage.
Stratigraphic definition.
formation dates from the Langhian to earliest Tortonian epochs of the Middle to Late Miocene, typically Colloncuran.
The Collón Curá Formation is named after the Collón Curá River, a tributary of the Limay River in the Río Negro watershed, and lends its name to the Colloncuran, one of the South American land mammal ages. The formation has provided many fossils of mammals, reptiles, among others the snake "Waincophis australis", and the largest terror bird "Kelenken guillermoi". The rodent "Galileomys colloncurensis" and the typothere