On the systematics of the Early Cretaceous terebratulids of the subfamily Cancello thyrinae. Paleontologicheskii Zhurnal, 1966(3) 1966: 31-41. [Zoological Record Volume 103]
Systematics of early Cretaceous terebratulids of subfamily Cancellothyrinae. Paleontologicheskii Zhurnal, 1966(3) 1966: 31-41. [Zoological Record Volume 104]