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†Acanthonema holopiformis Grabau 1910
urn:lsid:organismnames.com:name:3568570
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†Acanthonema holopiformis Grabau 1910
Grabau 1910. Description of Monroe fossils. [Grabau and Sherzer. The Monroe formation of southern Michigan... Chapter 4.] Michigan Geological and Biological Survey Pub Geol Ser, 1 1910: (87-213)