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Pachydiadema
Taxonomy
Pachydiadema was named as a genus. It is not extant. Its type is Catophragmus (Pachydiadema) cretaceum. It is the type genus of Pachydiadematoidea, Pachydiadematidae.
It was reranked as Catophragmus (Pachydiadema) by Withers (1935).
It was assigned to Catophragmus by Withers (1935); to Cirripedia by Sepkoski (2002); to Balanomorpha by Gale (2014); to Sessilia by Gale (2015); and to Pachydiadematidae by Chan et al. (2021).
It was reranked as Catophragmus (Pachydiadema) by Withers (1935).
It was assigned to Catophragmus by Withers (1935); to Cirripedia by Sepkoski (2002); to Balanomorpha by Gale (2014); to Sessilia by Gale (2015); and to Pachydiadematidae by Chan et al. (2021).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1935 | Catophragmus (Pachydiadema) Withers |
| 2002 | Pachydiadema Sepkoski |
| 2014 | Pachydiadema Gale p. 802 |
| 2015 | Pachydiadema Gale p. 239 |
| 2021 | Pachydiadema Chan et al. |
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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