Basin and Petroleum System Modeling integrates sofisticated techniques from the fields of geology, engineering and software development, aiming to mitigate the economic risks presented in the exploration of hydrocarbons. Even though the formation of sedimentary basins presents a high level of complexity, involving several geological processes, the main technique applied to represent the tension-deformation behavior of sedimentary rocks in numerical analyses is an empirical law developed by geophysicist Lawrence F. Athy in the 1930s, based on a series of simplifications about the mechanical problem. In that context, this work evaluates the capability of constitutive models based on Continuum Mechanics: elastic, elastoplastic with an uncapped yield surface and elastoplastic with a capped yield surface to represent the mechanical behavior of sedimentary rocks associated with the deposition and compaction processes observed in BPSM, using the data from Athy s empirical model as reference. After the initial investigation, the constitutive models are compared to the traditional solution (Athy s Law) in the representation of other geological processes (erosion, tectonic compression and tectonic extension) using simplified scenarios to predict the impact of such models in conventional BPSM analyses.