A reinterpretation of the Arenig crinoid Ramseyocrinus = Réinterprétation du crinoïde de l'Arenig RamseyocrinusCOPE, J. C. W.Palaeontology. 1988, Vol 31, Num 1, pp 229-235, issn 0031-0239Article

ON 'DENDROCRINUS' CAMBRIENSIS HICKS,THE EARLIEST KNOWN CRINOID.BATES DEB.1968; PALAEONTOLOGY; GBR; 1968(6), VOL. 11, NUM. 003 , P. 406 A 409Miscellaneous

Ramseyocrinus and Ristnacrinus from the Ordovician of Britain = Ramseyocrinus et Ristnacrinus de l'Ordovicien de Grande-BretagneDONOVAN, S. K.Palaeontology. 1984, Vol 27, Num 3, pp 623-634, issn 0031-0239Article