Letsch, D., Large, S. J., Bernasconi, S. M., Klug, C., Blattmann, T. M., Winkler, W., & von Quadt, A. (2019). Northwest Africa’s Ediacaran to early Cambrian fossil record, its oldest metazoans and age constraints for the basal Taroudant Group (Morocco). Precambrian Research, 320, 438-453. https://doi.org/10.1016/j.precamres.2018.11.016

Letsch, Dominik, Simon J.E Large, Stefano M. Bernasconi, Christian Klug, Thomas M. Blattmann, Wilfried Winkler, and Albrecht von Quadt. "Northwest Africa’s Ediacaran to Early Cambrian Fossil Record, Its Oldest Metazoans and Age Constraints for the Basal Taroudant Group (Morocco)." Precambrian Research 320 (2019): 438-453. https://doi.org/10.1016/j.precamres.2018.11.016.

Letsch, Dominik, et al. "Northwest Africa’s Ediacaran to Early Cambrian Fossil Record, Its Oldest Metazoans and Age Constraints for the Basal Taroudant Group (Morocco)." Precambrian Research, vol. 320, 2019, pp. 438-453, https://doi.org/10.1016/j.precamres.2018.11.016.