WoRMS taxon details
original description
Herb, R. (1978). Some species of Operculina and Heterostegina from the Eocene of the Helvetic nappes of Switzerland and from Northern Italy. <em>Eclogae Geologicae Helvetiae.</em> 71: 745–767., available online at http://doi.org/10.5169/seals-164754 [details] Available for editors [request]
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