Clark, A. M.; Tortonese, E. (1986). A new subspecies of <i>Echinaster sepositus</i> (Retzius) (Echinodermata: Asteroidea) from West Africa. <em>Atti della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano.</em> 127(1-2), 65-71, 2 figs.[details]
Mah, C.L. (2025). World Asteroidea Database. Echinaster (Echinaster) sepositus madseni A.M. Clark & Tortonese, 1986. Accessed through: Marine Species Traits editorial board (2025) Marine Species Traits at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=369089 on 2025-05-24
Marine Species Traits editorial board (2025). Marine Species Traits. Echinaster (Echinaster) sepositus madseni A.M. Clark & Tortonese, 1986. Accessed at: https://www.marinespecies.org/traits/aphia.php?p=taxdetails&id=369089 on 2025-05-24
original descriptionClark, A. M.; Tortonese, E. (1986). A new subspecies of <i>Echinaster sepositus</i> (Retzius) (Echinodermata: Asteroidea) from West Africa. <em>Atti della Società italiana di scienze naturali e del Museo civico di storia naturale di Milano.</em> 127(1-2), 65-71, 2 figs.[details]
basis of recordClark, A. M.; Downey, M. E. (1992). Starfishes of the Atlantic. <i>Chapman & Hall Identification Guides</i>, 3. Chapman & Hall. London, UK. ISBN 0-412-43280-3. xxvi, 794 pp. (look up in IMIS) [details]
Present Inaccurate Introduced: alien Containing type locality