1. Begg, J.L. 1939. On the GenusCyclocystoides, With a description of a New Species from the Ashgillian of Girvan. — Transactions of the Geological Society of Glasgow20 (1): 21–28.
2. Blainville, H.M.D. De 1830. Zoophytes. — Dictionnaire des Sciences Naturelles60: 1–631, Strasbourg (Levrault) & Paris (Le Normant).
3. Boczarowski, A. 2001. Isolated sclerites of Devonian non-pelmatozoan echinoderms. — Palaeontologia Polonica59: 3–220.
4. Donovan, S.K.;Lewis, D.N. &Harper, D.A.T. 2002. Fossils explained 40: The Lady Burn Starfish Beds. — Geology Today18 (4): 151–157.
5. Donovan, S.K.;Paul, C.R.C &Lewis, D.N. 2002. Echinoderms. — In:Harper, D.A.T. &Owen, A.W., eds., Fossils of the upper Ordovician. — Palaeontological Association, Field Guides to Fossils7: 202–267.