Literature

Authors	Year	Title
A. H. Clark	1931	A monograph of the existing crinoids. Vol. 1. The comatulids. Part 3. Superfamily Comasterida
A. H. Clark	1913	Notes on the recent crinoids in the British Museum
A. H. Clark	1909	New genera and higher groups of unstalked crinoids
A. H. Clark	1908	New genera of unstalked crinoids
A. H. Clark, Clark A. M. G.	1967	A monograph of the existing crinoids. Vol. 1. The comatulids. Part 5. Suborders Oligophreata (concluded) and Macrophreata

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