Jeholbaatar kielanae is an extinct mammal that lived in China during the Cretaceous Period about 120 million years ago. It has well-preserved middle ear bones. This ancient mammal is a multituberculate, a distant relative of today's rodents.
Jeholbaatar kielanae is an extinct mammal that lived in China during the Cretaceous Period about 120 million years ago. It has well-preserved middle ear bones. This ancient mammal is a multituberculate, a distant relative of today's rodents.