INVESTIGADORES
ZUCOL Alejandro Fabian
artículos
Título:
EMERGENCE OF GRASSY HABITATS DURING THE GREENHOUSE ? ICEHOUSE SYSTEMS TRANSITION IN THE MIDDLE EOCENE OF SOUTHERN SOUTH AMERICA
Autor/es:
ALEJANDRO F. ZUCOL; J. MARCELO KRAUSE; MARIANA BREA; M. SOL RAIGEMBORN; SERGIO D. MATHEOS
Revista:
AMEGHINIANA
Editorial:
ASOCIACION PALEONTOLOGICA ARGENTINA
Referencias:
Lugar: Buenos Aires; Año: 2018 vol. 55 p. 451 - 482
ISSN:
0002-7014
Resumen:
Phytolith assemblages recovered from the middle Eocene Koluel-KaikeFormation 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.
