@book{bhlitem266367, title = {Smithsonian contributions to paleobiology }, volume = {no.69 (1991)}, copyright = {In copyright. Digitized with the permission of the rights holder.}, url = {https://www.biodiversitylibrary.org/item/266367}, note = {https://www.biodiversitylibrary.org/bibliography/132606}, publisher = {Washington, Smithsonian Institution Press, 1969-}, author = {Smithsonian Institution}, year = {1991}, pages = {44}, keywords = {Paleobiology|}, }