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Changia
Taxonomy
Changia was named by Sun (1924) [Sepkoski's age data: Cm Trep Sepkoski's reference number: 464]. It is not extant. Its type is Changia chinensis.
It was assigned to Asaphida by Sepkoski (2002); and to Ptychaspididae by Jell and Adrain (2002).
It was assigned to Asaphida by Sepkoski (2002); and to Ptychaspididae by Jell and Adrain (2002).
Species
C. chinensis (type species), Quadraticephalus elongatus
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1924 | Changia Sun |
| 1925 | Quadraticephalus Sun |
| 1935 | Coreanocephalus Kobayashi |
| 2002 | Changia Jell and Adrain p. 356 |
| 2002 | Changia Sepkoski |
| 2002 | Coreanocephalus Sepkoski |
| 2002 | Quadraticephalus 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.
G. †Changia Sun 1924
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†Changia chinensis Sun 1924
Invalid names: Coreanocephalus Kobayashi 1935 [synonym], Quadraticephalus Sun 1925 [synonym]
Diagnosis
No diagnoses are available