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): 160-161, textfigs 7a-d [details]
From editor or global species database
Type locality "In the Mengyin formation of Ning-Chia-Kou, Shantung, Lower Cretaceous", China [details]