Hone DW; Benton MJ (2005). «The evolution of large size: how does Cope's Rule work?». Trends in Ecology and Evolution20 (1): 4-6. PMID16701331. doi:10.1016/j.tree.2004.10.012.
Monroe, M. J.; Bokma, F. (2010). «Little evidence for Cope's rule from Bayesian phylogenetic analysis of extant mammals». Journal of Evolutionary Biology23 (9): 2017-2021. PMID20629852. doi:10.1111/j.1420-9101.2010.02051.x.
Finarelli, John A. (2008). «Testing hypotheses of the evolution of encephalization in the Canidae (Carnivora, Mammalia)». Paleobiology34: 35-45. doi:10.1666/07030.1.
Sereno, P. C.; A. L. Beck; D. B. Dutheil; B. Gado; H. C. E. Larsson; G. H. Lyon; J. D. Marcot; O. W. M. Rauhut et al. (1999). «Cretaceous Sauropods from the Sahara and the Uneven Rate of Skeletal Evolution Among Dinosaurs». Science286 (5443): 1342-1347. PMID10558986. doi:10.1126/science.286.5443.1342.Se sugiere usar |número-autores= (ayuda)
Hone, D. W. E.; Keesey, T. M.; Pisani, D.; Purvis, A. (2005). «Macroevolutionary trends in the Dinosauria: Cope's rule». Journal of Evolutionary Biology18 (3): 587-595. PMID15842488. doi:10.1111/j.1420-9101.2004.00870.x.
Butler, R. J.; Goswami, A. (2008). «Body size evolution in Mesozoic birds: little evidence for Cope's rule». Journal of Evolutionary Biology21 (6): 1673-1682. PMID18691237. doi:10.1111/j.1420-9101.2008.01594.x.
Hone DW; Benton MJ (2005). «The evolution of large size: how does Cope's Rule work?». Trends in Ecology and Evolution20 (1): 4-6. PMID16701331. doi:10.1016/j.tree.2004.10.012.
Monroe, M. J.; Bokma, F. (2010). «Little evidence for Cope's rule from Bayesian phylogenetic analysis of extant mammals». Journal of Evolutionary Biology23 (9): 2017-2021. PMID20629852. doi:10.1111/j.1420-9101.2010.02051.x.
Sereno, P. C.; A. L. Beck; D. B. Dutheil; B. Gado; H. C. E. Larsson; G. H. Lyon; J. D. Marcot; O. W. M. Rauhut et al. (1999). «Cretaceous Sauropods from the Sahara and the Uneven Rate of Skeletal Evolution Among Dinosaurs». Science286 (5443): 1342-1347. PMID10558986. doi:10.1126/science.286.5443.1342.Se sugiere usar |número-autores= (ayuda)
Hone, D. W. E.; Keesey, T. M.; Pisani, D.; Purvis, A. (2005). «Macroevolutionary trends in the Dinosauria: Cope's rule». Journal of Evolutionary Biology18 (3): 587-595. PMID15842488. doi:10.1111/j.1420-9101.2004.00870.x.
Butler, R. J.; Goswami, A. (2008). «Body size evolution in Mesozoic birds: little evidence for Cope's rule». Journal of Evolutionary Biology21 (6): 1673-1682. PMID18691237. doi:10.1111/j.1420-9101.2008.01594.x.