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Nichols, D., 1959, Changes in the Chalk heart-urchin Micraster interpreted in relation to living forms: Royal Society of London, Philosophical Transactions, Series B, v. 242, p. 347-437.
---, 1959, Mode of life and taxonomy in irregular sea-urchins: Systemists Association, v. 3, p. 61-80.
Rowe, A. W., 1899, An analysis of the genus Micraster as determined by rigid zonal collecting from the zone of Rhynchonella cuvieri to that of Micraster cor-anguinum: Geological Society of London Quarterly Journal, v. 55, p. 494-547.
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