@article{paz_rossetti_2006,  title={Petrography of gypsum-bearing facies of the Codó Formation (Late Aptian), Northern Brazil},  volume={78},  ISSN={0001-3765},  url={https://doi.org/10.1590/S0001-37652006000300014},  DOI={10.1590/S0001-37652006000300014},  number={3},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={Paz, Jackson D.S. and Rossetti, Dilce F.},  year={2006},  month={Sep},  pages={557–572} }