Eubrachiosaurus [SEP] parent taxon
". Kammerer "et al." (2013) redescribed the available material and the missing elements were redescribed from photographs taken by Williston (1904), and suggested that "Eubrachiosaurus" is a valid member of the Stahleckeriinae, most closely related to "Sangusaurus".
Kammerer "et al." (2013) also noted that Williston (1904) described "Brachybrachium" on the basis of a fragmentary humerus from the upper Popo Agie beds, in "almost identically the same horizon" as "Eubrachiosaurus".
Eubrachiosaurus
Eubrachiosaurus is an extinct genus of stahleckeriine dicynodont known from the Late Triassic (Carnian stage) of Wyoming, United States.
Description.
"Eubrachiosaurus" is known only from the holotype specimen FMNH UC 633, a partial left scapula as well as a left humerus, and left pelvis which have been lost. It was collected at the Little Popo Agie River, near Lander, Fremont County from the Popo Agie Formation of the Chugwater Group. "Eubrachiosaurus browni" was first described and named by Samuel Wendell Williston