Mariliasuchus amarali Carvalho & Bertini, 1999 was a terrestrial quadruped crocodyliform from the Late Cretaceous of Bauru Group, Brazil. In this paper we present first study bone histology species. Moderate growth rate, interspersed by marks, observed in thin sections rib and appendicular bones; patterns M. amaralis appear similar to those Triassic archosauriforms. The cross-sections indic...