Wehr in the World: March 2009

-200 E SOZ O AGO PERIOD CRETACE OUS 251 LION YEARS JURASSI C 65 MILLION YEARS AGÒ PERIOD rRIASSIC PERIOD -542 M.Y.---AGO CAMBRIAN PERIOD ORDOVICIAN PERIOD PERMIAN PERIOD AGO- 416 PENNSYLVANIAN PERIOD MISSISSIPPIAN PERIOD DEVONIAN PERIOD PRECAMBRIAN AGO 1 BILLION YEARS AGO Miocene Epoch PERIOD 2 BILLION YEARS AGO Pliocene Epoch Holocene Pleistocene Epoch Epoch TERTIARY 3 BILLION YEARS AGO EARLIEST ORGANIC STRUCTURES PERIOD 4.5 BILLION QUATERNARY YEARS AGO Paleocene TERTIALY FER PERIOD SILURIAN -200 E SOZ O AGO PERIOD CRETACE OUS 251 LION YEARS JURASSI C 65 MILLION YEARS AGÒ PERIOD rRIASSIC PERIOD -542 M.Y.---AGO CAMBRIAN PERIOD ORDOVICIAN PERIOD PERMIAN PERIOD AGO- 416 E C PENNSYLVANIAN PERIOD MISSISSIPPIAN PERIOD DEVONIAN PERIOD PRECAMBRIAN AGO 1 BILLION YEARS AGO E ENOZOI C Miocene Epoch PERIOD 2 BILLION YEARS AGO Pliocene Epoch Holocene Pleistocene Epoch Epoch TERTIARY 3 BILLION YEARS AGO EARLIEST ORGANIC STRUCTURES PERIOD 4.5 BILLION QUATERNARY YEARS AGO Paleocene TERTIALY FER PERIOD SILURIAN -200 E SOZ O AGO PERIOD CRETACE OUS 251 LION YEARS JURASSI C 65 MILLION YEARS AGÒ PERIOD rRIASSIC PERIOD -542 M.Y.---AGO CAMBRIAN PERIOD ORDOVICIAN PERIOD PERMIAN PERIOD AGO- 416 E C PENNSYLVANIAN PERIOD MISSISSIPPIAN PERIOD DEVONIAN PERIOD PRECAMBRIAN AGO 1 BILLION YEARS AGO E ENOZOI C Miocene Epoch PERIOD 2 BILLION YEARS AGO Pliocene Epoch Holocene Pleistocene Epoch Epoch TERTIARY 3 BILLION YEARS AGO EARLIEST ORGANIC STRUCTURES PERIOD 4.5 BILLION QUATERNARY YEARS AGO Paleocene TERTIALY FER PERIOD SILURIAN -200 E SOZ O AGO PERIOD CRETACE OUS 251 LION YEARS JURASSI C 65 MILLION YEARS AGÒ PERIOD rRIASSIC PERIOD -542 M.Y.---AGO CAMBRIAN PERIOD ORDOVICIAN PERIOD PERMIAN PERIOD AGO- 416 E C PENNSYLVANIAN PERIOD MISSISSIPPIAN PERIOD DEVONIAN PERIOD PRECAMBRIAN AGO 1 BILLION YEARS AGO E ENOZOI C Miocene Epoch PERIOD 2 BILLION YEARS AGO Pliocene Epoch Holocene Pleistocene Epoch Epoch TERTIARY 3 BILLION YEARS AGO EARLIEST ORGANIC STRUCTURES PERIOD 4.5 BILLION QUATERNARY YEARS AGO Paleocene TERTIALY FER PERIOD SILURIAN -200 E SOZ O AGO PERIOD CRETACE OUS 251 LION YEARS JURASSI C 65 MILLION YEARS AGÒ PERIOD rRIASSIC PERIOD -542 M.Y.---AGO CAMBRIAN PERIOD ORDOVICIAN PERIOD PERMIAN PERIOD AGO- 416 E C PENNSYLVANIAN PERIOD MISSISSIPPIAN PERIOD DEVONIAN PERIOD PRECAMBRIAN AGO 1 BILLION YEARS AGO E ENOZOI C Miocene Epoch PERIOD 2 BILLION YEARS AGO Pliocene Epoch Holocene Pleistocene Epoch Epoch TERTIARY 3 BILLION YEARS AGO EARLIEST ORGANIC STRUCTURES PERIOD 4.5 BILLION QUATERNARY YEARS AGO Paleocene TERTIALY FER PERIOD SILURIAN -200 E SOZ O AGO PERIOD CRETACE OUS 251 LION YEARS JURASSI C 65 MILLION YEARS AGÒ PERIOD rRIASSIC PERIOD -542 M.Y.---AGO CAMBRIAN PERIOD ORDOVICIAN PERIOD PERMIAN PERIOD AGO- 416 E C PENNSYLVANIAN PERIOD MISSISSIPPIAN PERIOD DEVONIAN PERIOD PRECAMBRIAN AGO 1 BILLION YEARS AGO E ENOZOI C Miocene Epoch PERIOD 2 BILLION YEARS AGO Pliocene Epoch Holocene Pleistocene Epoch Epoch TERTIARY 3 BILLION YEARS AGO EARLIEST ORGANIC STRUCTURES PERIOD 4.5 BILLION QUATERNARY YEARS AGO Paleocene TERTIALY FER PERIOD SILURIAN