Simonova, Y. A.; Zub, V. V. (1975). ????? ????????????? ????????? Quasiendoth?rida? ?? ??????? ??????????????? ????????? ????????? ????-???? ? ?????? ??????? - New representatives of the family Quasiendothuridae from the Middle and Upper Visean deposits of the Northern Tien-Shan and Lesser Karatau. ????????? ??????????????? ????????. ???????? - Kazakh Polytechnic Institute. Geology. 9: 19-35. page(s): p. 21 pl. 1 fig. 13-15(Holotype)
