Schlüter, N., Taherpour-Khalil-Abad, M., Majidifard, M., Hassanzadeh, Z. and Taheri, J. 2019.

Two echinoid species from the early Aptian (Early Cretaceous) of the Kopet-Dagh Basin, NE Iran

. Zootaxa. 4656, 1 (Aug. 2019), 121–132. DOI:https://doi.org/10.11646/zootaxa.4656.1.5.