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Spirina symmetrica
Taxonomy
Spirina symmetrica was named by Perner (1907) [Spirina symmetrica Barrande in Perner 1907]. It is not extant.
Synonymy list
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If no rank is listed, the taxon is considered an unranked clade in modern classifications. Ranks may be repeated or presented in the wrong order because authors working on different parts of the classification may disagree about how to rank taxa.
†Spirina symmetrica Perner 1907
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Diagnosis
No diagnoses are available