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Protachilleum
Taxonomy
Protachilleum was named by Zittel (1877) [Sepkoski's age data: S]. It is not extant. Its type is Protachilleum kayseri.
It was assigned to Anthaspidellidae by Beresi and Rigby (1993); and to Lithistida by Sepkoski (2002).
It was assigned to Anthaspidellidae by Beresi and Rigby (1993); and to Lithistida by Sepkoski (2002).
Species
P. kayseri (type species)
Synonymy list
Year | Name and author |
---|---|
1877 | Protachilleum Zittel |
1993 | Protachilleum Beresi and Rigby |
2002 | Protachilleum Sepkoski |
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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.
Diagnosis
No diagnoses are available