Araújo , R., Polcyn , M., Lindgren , J., Jacobs , L., Schulp , A., Mateus , O., Olímpio Gonçalves , A. and Morais , M.-L. 2015. New aristonectine elasmosaurid plesiosaur specimens from the Early Maastrichtian of Angola and comments on paedomorphism in plesiosaurs. Netherlands Journal of Geosciences. 94, (Feb. 2015), 93-108. DOI:https://doi.org/10.1017/njg.2014.43.