Tribe of bears
Agriotheriini is an extinct tribe of ailuropodine bears from the middle Neogene to early Quaternary periods, with fossils found from Eurasia, Africa, and North America.
Taxonomy.
The tribe Agriotheriini consists of the three (perhaps four) genera
The taxonomy of these bears has variously placed some of the genera in other bear lineages such as Hemicyoninae and Ursavinae. 
Recent papers support their inclusion with giant pandas as members of Ailuropodinae based on diagnostic features like 
They are unlike their closest living relative, the giant panda ("Ailuropoda melanoleuca") which evolved into a highly specialized bamboo-eater: The evolution of agriotheriins lead to the group becoming large, hypercarnivorous bears that had adaptations of cursoriality unique in the evolutionary history of bears.
References.
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