For another, the region appears to have been incredibly diverse ecologically: remains of woodland creatures, such as deer, and grassland animals, such as horses, have all turned up at the site, suggesting a mosaic of forest and savanna habitats.

• 理由之二，此地的生态似乎非常复杂：疏林动物如鹿，草原动物如马，此地都有化石出土，表示森林与草原栖境在这里错杂。