References
- The species from the Coal Measures which White has described as Erisocrinus planus 1880 ii 257 257 pl. i. figs. 6, 7) may perhaps belong to Graphiocrinus, as described by de Koninck.
- 1886 . Revision of the Palæocrinoidea, Part III . Proc. Acad. Nat. Sci. Philad. , : 176 – 176 .
- 1861 . : 8 – 8 .
- 1861 . vii ( 2 ) : 314 – 314 . (1863)