| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Rhactorthidae
Taxonomy
Rhactorthidae was named by Williams (1963).
It was reranked as the subfamily Rhactorthinae by Wright (1964), Owen and Harper (1982) and Potter (1990).
It was assigned to Orthacea by Owen and Harper (1982); to Plectorthidae by Wright (1964) and Potter (1990); and to Plectorthoidea by Williams et al. (2000).
It was reranked as the subfamily Rhactorthinae by Wright (1964), Owen and Harper (1982) and Potter (1990).
It was assigned to Orthacea by Owen and Harper (1982); to Plectorthidae by Wright (1964) and Potter (1990); and to Plectorthoidea by Williams et al. (2000).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1963 | Rhactorthidae Williams |
| 1964 | Rhactorthinae Wright |
| 1982 | Rhactorthinae Owen and Harper |
| 1990 | Rhactorthinae Potter |
| 2000 | Rhactorthidae Williams et al. p. 778 |
Is something missing? Join the Paleobiology Database and enter the data
|
|
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