Tooth histology and ultrastructure of a Paleozoic shark, Edestus heinrichii / Katherine Taylor -- and Thomas Adamec --.

v.33:no.24(1977)

A mastodont tooth from Szechwan, China / Dirk A. Hooijer -- and Edwin H. Colbert --.

v.10:no.12(1951)

Upper premolar-molar structure in the notoungulata with notes on taxonomy / by Bryan Patterson --

v.6:no.6(1934)