original description
Tzankov, V. 1982. Les fossiles de Bulgarie. Va. Crétacé Supérieur: Cephalopoda (Nautiloidea, Ammonoidea) et Echinodermata (Echinoidea). Académie Bulgare des Sciences, Sofia, 136 pp.
page(s): 101; pl. 45: figs 2, 2a-c [details]
From editor or global species database
Fossil range Lower Senonian [details]
Type locality Kondel, Dragoman, de Sofia, Bulgaria [details]
Type material HT: USC CR2 1302 [details]