Barzalosa Formation
Videos
Page
The Barzalosa Formation is a fossiliferous geological formation of the Upper Magdalena Valley and the bounding foothills of the Central Ranges and Eastern Ranges of the Colombian Andes. The formation consists of conglomerates, sandstones and siltstones. The Barzalosa Formation probably dates to the Late Paleogene to Early Neogene period; Oligocene to Early Miocene epochs, and has an approximate thickness of 360 metres (1,180 ft). Fossils of Balanerodus logimus, Lophiodolodus chaparralensis, Xenastrapotherium chaparralensis, Protheosodon sp. and Proadinotherium sp. have been uncovered from the formation in Chaparral, Tolima.
Paleogeography of Northern South America 35 Ma, by Ron Blakey
Image: Blakey Pleist COL
Image: Blakey 020Ma COL
Image: Blakey 035Ma COL
Honda Group, Colombia
Videos
Page
The Honda Group is a geological group of the Upper and Middle Magdalena Basins and the adjacent Central and Eastern Ranges of the Colombian Andes. The group, in older literature also defined as formation, is in its present-day type section in the Tatacoa Desert in the department of Huila subdivided into two main formations; La Victoria and Villavieja.
Statue of a prehistoric ground sloth from the Honda Group in Villavieja, Huila
Paleogeography of Northern South America 20 Ma, by Ron Blakey
View of Honda, Tolima, namesake of the Honda Group
Wind erosion of the Villavieja Formation in the Tatacoa Desert