EMERGENCE OF GRASSY HABITATS DURING THE GREENHOUSE–ICEHOUSE SYSTEMS TRANSITION IN THE MIDDLE EOCENE OF SOUTHERN SOUTH AMERICA
Keywords:
Phytoliths, palaeosols, Koluel-Kaike Formation, palaeoclimate, EECO, Central PatagoniaAbstract
Phytolith assemblages recovered from the middle Eocene Koluel-Kaike Formation in Central Patagonia, southern South America, confirm the presence of herbaceous components, mainly related to mixed ecosystems or savannahs, and subordinate forest communities. This new palaeobotanical information reveals a clear transition between previously described woodland-dominated communities from the early Eocene Las Flores Formation, and grass-rich ecosystems from the mid-Eocene Sarmiento Formation. The early appearance of grass-dominated ecosystems in southern South America, would be related to the worldwide greenhouse to icehouse systems transition initiated during the mid-Palaeogene.Downloads
Published
2018-09-30
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EMERGENCE OF GRASSY HABITATS DURING THE GREENHOUSE–ICEHOUSE SYSTEMS TRANSITION IN THE MIDDLE EOCENE OF SOUTHERN SOUTH AMERICA. (2018). Ameghiniana, 55(4), 451–482. https://ameghiniana.org.ar/index.php/ameghiniana/article/view/3152
