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Proarchaeocyathus
Taxonomy
Proarchaeocyathus was named by Radugin (1966). It is not extant. 
It was assigned to Problematica by Zhuravlev and Kruse (2015).
It was assigned to Problematica by Zhuravlev and Kruse (2015).
Synonymy list
| Year | Name and author | 
|---|---|
| 1966 | Proarchaeocyathus Radugin | 
| 2015 | Proarchaeocyathus Zhuravlev and Kruse p. 1103 | 
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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. †Proarchaeocyathus Radugin 1966
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
No ecological data are available
Collections
  
No collection or age range data are available