Rebelo, A.C., Rasser, M., Riosmena-Rodríguez, R., Neto, A.I. & Ávila, S. (2014) Rhodolith forming coralline algae in the Upper Miocene of Santa Maria Island (Azores, NE Atlantic): a critical evaluation. Phytotaxa 190 (1): 370–382. https://doi.org/10.11646/phytotaxa.190.1.22