Srivastava, D. K.; Singh, A. P.; Tiwari, R. P.; Jauhri, A. K. (2008). Cassiduloids (Echinoidea) from the Siju Formation (late Lutetian-early Bartonian) of the South Garo Hills, Meghalaya, India. Revue de Paléobiologie. 27: 511-523.
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Srivastava, D. K.; Singh, A. P.; Tiwari, R. P.; Jauhri, A. K.
2008
Cassiduloids (Echinoidea) from the Siju Formation (late Lutetian-early Bartonian) of the South Garo Hills, Meghalaya, India