original description
Grabau, A.W. (1923). Cretaceous fossils from Shantung. <em>Bulletin of the Geological Survey of China.</em> 5(2): 143-181.
page(s): 157-158, fig. 6c [details]
From editor or global species database
Type locality "In the Wangshih formation of Chiao-Hsien, east Shantung (loc . 220)" [Shandong Province, China] [details]