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†Helosphaeridium guttatum Playford 1981
urn:lsid:organismnames.com:name:271684
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38
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†Helosphaeridium guttatum Playford 1981
Playford 1981. Late Devonian acritarchs from the Carnarvon Basin, Western Australia. Special Papers in Palaeontology, No. 27 1981: 1-78