Diagnostic Features |
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Distribution | Upper Eocene, Germany. |
Name gender | masculine |
Type | Spatangus (Micraster) bigibbus von Beyrich, 1848, p. 100, by original designation. |
Species Included | Only the type species. |
Classification and/or Status |
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Remarks | Differs from Hemipatagus in lacking primary aboral tubercles and by its very distinctive oral transverse mounds in front of the peristome. Noetling, F. 1884. Zeitschrift der deutsches Geoligische Geschichte 35, p. 688. Noetling, F. 1885. Die Fauna des Samländischen Tertiärs. Abhandlungen zur Geologischen Specialkarte von Preussen und den Thuringischen Staaten, 6 (3), 1-216, pls 1, 2. |