Fell, H. B. & Pawson, D. L. 1966. Echinacea. Pp. U367-U440 in R. C. Moore (ed.) Treatise on Invertebrate Paleontology, U. Echinodermata. 3 (2) GSA & Univ. Kansas Press, Boulder, CO & Lawrence, KS. page(s): U431 [details]
Kroh, A.; Mooi, R. (2021). World Echinoidea Database. Gracilechinus Fell & Pawson in Moore, 1966. Accessed through: Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2021) European Register of Marine Species at: http://www.marbef.org/data/aphia.php?p=taxdetails&id=411391 on 2024-03-28
Costello, M.J.; Bouchet, P.; Boxshall, G.; Arvanitidis, C.; Appeltans, W. (2024). European Register of Marine Species. Gracilechinus Fell & Pawson in Moore, 1966. Accessed at: https://vliz.be/vmdcdata/narms/narms.php?p=taxdetails&id=411391 on 2024-03-28
original descriptionFell, H. B. & Pawson, D. L. 1966. Echinacea. Pp. U367-U440 in R. C. Moore (ed.) Treatise on Invertebrate Paleontology, U. Echinodermata. 3 (2) GSA & Univ. Kansas Press, Boulder, CO & Lawrence, KS. page(s): U431 [details]
Present Inaccurate Introduced: alien Containing type locality