Flower, R., Keatings, K., Hamdan, M. and Hassan, F. 2013. Stephanodiscus Ehr. species from Holocene sediments in the Faiyum Depression (Middle Egypt). Phytotaxa. 127, 1 (Aug. 2013), 66–80. DOI:https://doi.org/10.11646/phytotaxa.127.1.10.