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About: Jehol Biota     Goto   Sponge   NotDistinct   Permalink

An Entity of Type : yago:WikicatDinosaurs, within Data Space : dbpedia.demo.openlinksw.com associated with source document(s)

Type: yago:Animal100015388yago:Archosaur101695681yago:Chordate101466257yago:Diapsid101661818yago:Dinosaur101699831yago:LivingThing100004258yago:Object100002684yago:Organism100004475yago:PhysicalEntity100001930yago:Reptile101661091yago:Vertebrate101471682yago:Whole100003553yago:WikicatDinosaurs New Facet based on Instances of this Class

The Jehol Biota includes all the living organisms – the ecosystem – of northeastern China between 133 and 120 million years ago. This is the Lower Cretaceous ecosystem which left fossils in the Yixian Formation and Jiufotang Formation. These deposits are composed of layers of tephra and sediment. It is also believed to have left fossils in the Sinuiju series of North Korea. The ecosystem in the Lower Cretaceous was dominated by wetlands and numerous lakes (not rivers, deltas, or marine habitats). Rainfall was seasonal, alternating between semiarid and mesic conditions. The climate was temperate. The Jehol ecosystem was interrupted periodically by ash eruptions from volcanoes to the west. The word "Jehol" is a historical transcription of the former Rehe Province.