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Helminthidium
Taxonomy
Helminthidium was named by Lindström (1882) [Sepkoski's age data: S Wenl S Ludl]. It is not extant.
It was assigned to Calostylidae by Hill (1956); and to Rugosa by Sepkoski (2002).
It was assigned to Calostylidae by Hill (1956); and to Rugosa by Sepkoski (2002).
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.
G. †Helminthidium Lindström 1882
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| Reference: Kiessling 2004 | |||||