Herbstosaurus Herbstosaurus Herbstosaurus is the name given to a genus of pterosaur that lived during the Jurassic period, in what is now Argentina. In 1969 Argentine paleobotanist Rafael Herbst in the province Neuquén at Picun Leufú dug up a piece of sandstone holding a number of disarticulated bones of a small reptile. At the time it was assumed the rock dated from the Middle Jurassic (Callovian), about 163 million years ago. In 1974/1975 paleontologist Rodolfo Magín Casamiquela named the find as a new genus. The type species is "Herbstosaurus pigmaeus". The genus name honours Herbst and connects his name to Greek
South Polar region of the Cretaceous indicates a less powerful impact in the South Polar region. Given that the dinosaurs and other fauna of the polar regions of the Cretaceous were well adapted for living in long periods of dark and cold weather, it has been postulated that this community might have survived the event. The last temnospondyls–a group of giant amphibians which mainly died out after the Triassic–inhabited the South Polar region into the Early Cretaceous. "Koolasuchus", perhaps the last of the temnospondyls, is thought to have survived in regions where it was too cold for their competitors, the neosuchians–a group of reptiles containing modern