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Name(s) in cluster
†Opisthonematidae Yu 1976
urn:lsid:organismnames.com:name:164687
Microreference
40
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†Opisthonematidae Yu 1976
Yu 1976. Ordovician biostratigraphy and palaeozoogeography of China. Memoirs of Nanjing Institute of Geology and Palaeontology, No. 7 1976: 1-83