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Trizonoceras
Taxonomy
Trizonoceras was named by Girty (1909) [Sepkoski's age data: C Vise-u C Serp-l Sepkoski's reference number: 302,304]. It is not extant. Its type is Trizonoceras typicale.
It was assigned to Goniatitida by Sepkoski (2002); and to Dimorphoceratinae by Korn (2006) and Furnish et al. (2009).
It was assigned to Goniatitida by Sepkoski (2002); and to Dimorphoceratinae by Korn (2006) and Furnish et al. (2009).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1909 | Trizonoceras Girty |
| 2002 | Trizonoceras Sepkoski |
| 2006 | Trizonoceras Korn |
| 2009 | Trizonoceras Furnish et al. p. 40 |
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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. †Trizonoceras Girty 1909
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†Trizonoceras kathleenae Moore 1936
†Trizonoceras leitrimense Moore 1958
†Trizonoceras medioximum Ruzhentsev and Bogoslovskaya 1971
†Trizonoceras typicale Girty 1909
Diagnosis
No diagnoses are available