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Janiceps
Taxonomy
Janiceps was named by Frech (1901) [Sepkoski's age data: P Djhu P Dora Sepkoski's reference number: 411,1239]. Its type is Spirigera peracuta. It is the type genus of Janicepsinae.
It was assigned to Spirigerellinae by Williams et al. (2002); to Spiriferida by Sepkoski (2002); and to Janicepsinae by Posenato (2001), Williams et al. (2007).
It was assigned to Spirigerellinae by Williams et al. (2002); to Spiriferida by Sepkoski (2002); and to Janicepsinae by Posenato (2001), Williams et al. (2007).
Species
J. bipartita, J. cadorica (syn. Athyris globulus, Athyris humeralis, Spirigera archimedis, Athyris sagitta, Spirigera pusilla, Spirigera confinalis, Athyris irregularis), J. emarginatiformis, J. lozovskyi, J. ogbinensis, J. papilio (syn. Spirigera aquilina), J. peracuta (syn. Spirifer sextensis, Spirigera janiceps)
Synonymy list
| Year | Name and author |
|---|---|
| 1901 | Janiceps Frech p. 551 |
| 2001 | Janiceps Posenato p. 205 |
| 2002 | Janiceps Sepkoski |
| 2002 | Janiceps Williams et al. p. 1540 |
| 2007 | Janiceps Williams et al. p. 2757 |
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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. †Janiceps Frech 1901
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†Janiceps bipartita Stache 1878
†Janiceps cadorica Stache 1878
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Invalid names: Athyris globulus Merla 1930 [synonym], Athyris humeralis Merla 1930 [synonym], Athyris irregularis Merla 1930 [synonym], Athyris sagitta Merla 1930 [synonym], Spirigera archimedis Stache 1878 [synonym], Spirigera confinalis Stache 1878 [synonym], Spirigera pusilla Stache 1878 [synonym]
†Janiceps emarginatiformis Grunt 1986
†Janiceps lozovskyi Grunt 1986
†Janiceps ogbinensis Grunt 1965
†Janiceps peracuta Stache 1878
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Invalid names: Spirifer sextensis Stache 1878 [synonym], Spirigera janiceps Stache 1878 [synonym]
Diagnosis
No diagnoses are available