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Tonkinella
Taxonomy
Tonkinella was named by Mansuy (1916) [Sepkoski's age data: Cm lMid Cm mMid-u]. It is not extant. Its type is Tonkinella flabelliformis.
It was assigned to Tonkinellinae by Sundberg (1994); to Corynexochida by Sepkoski (2002); to Oryctocephalidae by Jell and Adrain (2002); and to Oryctocephalinae by Sundberg (2006).
It was assigned to Tonkinellinae by Sundberg (1994); to Corynexochida by Sepkoski (2002); to Oryctocephalidae by Jell and Adrain (2002); and to Oryctocephalinae by Sundberg (2006).
Species
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1916 | Tonkinella Mansuy |
| 1994 | Tonkinella Sundberg p. 35 |
| 2002 | Tonkinella Jell and Adrain p. 454 |
| 2002 | Tonkinella Sepkoski |
| 2006 | Tonkinella Sundberg p. 67 |
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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. †Tonkinella Mansuy 1916
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†Tonkinella breviceps Kobayashi 1934
†Tonkinella flabelliformis Mansuy 1916
†Tonkinella gavrilovae Dalmatov 1975
†Tonkinella spinosa Sundberg 2006
†Tonkinella valida Tchernysheva 1962
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| F. A. Sundberg 1994 | Tonkinellinae with lateral glabellar furrows connecting with the axial furrows at the F2 and F3 positions. |