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2. Variation in shape of shell in relation to palaeoecological station in some non-marine Bivalvia of the Coal Measures of south-east Kentucky and of Britain;Eagar;Sonderdruc aus Septième Congrès International de Stratigraphie et de Géologie Carbonifère,1973
3. Eagar, R. M. C. 1975. Some nonmarine bivalve faunas from the Dunkard Group and underlying measures. Proceedings of the First I. C. White Memorial Symposium, ‘The Age of the Dunkard', September 25–29, 1972, West Virginia Geological and Economic Survey, Morgantown, West Virginia, 23–67.
4. The stratigraphical and palaeoecological distribution of non-marine bivalves in the coalfields of northwest Spain;Eagar;Compte Rendu Dixième Congrès International de Stratigraphie et de Géologie du Carbonifère,1985
5. The shape of the Upper Carboniferous non-marine bivalve Anthraconaia in relation to the organic carbon content of the host sediment;Eagar;Transactions of the Royal Society of Edinburgh: Earth Sciences,1987