Calcisphaera robusta Williamson, 1880
Description Williamson, W. C. (1880). On the Organization of the Fossil Plants of the Coal-Measures. Part X. Including an Examination of the Supposed Radiolarians of the Carboniferous Rocks. Philosophical Transactions of the Royal Society of London. 171(0): 493-539., available online at https://archive.org/details/philtrans04248024
page(s): pp. 523-524 pl. 20 fig. 81
Author Le Coze, François
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added on 2018-01-19649 viewsTraits taxa Calcisphaera robusta Williamson, 1880 †checked Le Coze, François 2018-01-19