Faunal distribution is generally thought to be a result of the interaction of various related biological and environmental factors. 生物群的地理分佈受各種生物和環境因素的影響，對於不同地史時期以及不同的生物類型，控制生物群分佈的主導因素也是不同的。
According to experts' judgment, a large quantity of dinosaurs fossils and other species' fossils are still buried within the dinosaur fossil group distribution area. 據專家判斷，在恐龍化石群分布區還埋藏有大量恐龍骨骼化石和其它物種化石。
