| Basic info | Taxonomic history | Classification | Included Taxa |
| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Helicocyclinae
Taxonomy
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 2023 | Helicocyclinae Becker p. 811 |
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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.
Subfm. †Helicocyclinae Becker 2023
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G. †Helicocyclus Schindewolf 1951
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†Helicocyclus gracillimus Schindewolf 1951
†Helicocyclus tianshanicus Librovitch 1927
G. †Serpenticyclus Becker 2023
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†Serpenticyclus aberratus Kusina and Konovalova 2004
†Serpenticyclus formosus Korn et al. 2010
†Serpenticyclus fuscus Korn et al. 2003
†Serpenticyclus inornatus Korn et al. 2010
†Serpenticyclus involutus Kusina 1977
†Serpenticyclus laxaris Korn et al. 2010
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Kiessling 2003, Kiessling 2004 | |||||
Age range: base of the Tournaisian to the top of the Chadian or 358.86000 to 339.90000 Ma
Collections (15 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Tournaisian | Uzbekistan | Helicocyclus tianshanicus (172403 172404 172415 172416 172417 172418) | |
| Tournaisian | Morocco | Helicocyclus fuscus (66201) | |
| Tournaisian | Algeria | Helicocyclus formosus (135372) Helicocyclus formosus, Helicocyclus inornatus (135443) Helicocyclus formosus, Helicocyclus inornatus, Helicocyclus laxaris (135476) Helicocyclus inornatus (135368 135403) Helicocyclus inornatus, Helicocyclus laxaris (135404) Helicocyclus laxaris (135442) | |
| Chadian | Morocco | Tectocyclus herbigi (232837) |