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†Alexandricyathus ultrus Kashina 1979
urn:lsid:organismnames.com:name:105816
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142
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†Alexandricyathus ultrus Kashina 1979
Kashina 1979. Stratigraphy and Archeocyathi from the Lower Cambrian of Altaj-Sayan folded area. Rossiiskaya Akademiya Nauk Sibirskoe Otdelenie Trudy Instituta Geologii i Geofiziki, No. 380 1979: 1-213