Woody Allen | Allen Ginsberg | Tim Allen | Allen County, Indiana | Allen County | Steve Allen | Peter Allen | Ethan Allen | Paul Allen | Debbie Allen | Booz Allen Hamilton | Tony Allen | Irwin Allen | Aboite Township, Allen County, Indiana | Wayne Township, Allen County, Indiana | Lily Allen | Tony Allen (musician) | Joan Allen | Gracie Allen | David Allen Sibley | formation | Allen Toussaint | Allen Stanford | Allen Newell | Stephen Allen Davis | Allen Lane | The Steve Allen Show | Ted Allen | Rex Allen | Daevid Allen |
This specimen is from the Allen Formation of Rio Negro, dating back about 70 to 68 million years ago to the middle Maastrichtian stage.