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Martinosigra Nielsen 1942
urn:lsid:organismnames.com:name:3032180
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Martinosigra Nielsen 1942
Nielsen 1942. Martinosigra elongata n.g. n. sp., a new echinoid from the White Chalk of Denmark. Meddelelser fra Dansk Geologisk Forening, 10 1942: pp. 159-166