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Cyrtendoceratidae
Taxonomy
Cyrtendoceratidae was named by Hyatt (1900).
It was assigned to Endoceratina by Flower (1958); and to Endocerida by Teichert et al. (1964), Crick (1981).
It was assigned to Endoceratina by Flower (1958); and to Endocerida by Teichert et al. (1964), Crick (1981).
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1900 | Cyrtendoceratidae Hyatt |
| 1958 | Cyrtendoceratidae Flower |
| 1964 | Cyrtendoceratidae Teichert et al. p. 181 |
| 1981 | Cyrtendoceratidae Crick p. 226 |
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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.
Fm. †Cyrtendoceratidae Hyatt 1900
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G. †Cyclocyrtendoceras Balashov 1961
G. †Cyrtovaginoceras Kobayashi 1934
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: o = order, c = class | |||||
| References: Aberhan et al. 2004, Kiessling 2004 | |||||
Age range: base of the Chazyan to the top of the Late/Upper Llanvirn or 471.30000 to 458.20000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Dawan | China (Hunan) | Cyrtendoceras sp. (7691) | |
| Arenig | China (Guizhou) | Cyrtovaginoceras sp. (4769 7356) | |
| Arenig | China (JiangSu) | Cyrtovaginoceras sp. (7878) | |
| Arenig | China (Sichuan) | Cyrtovaginoceras sp. (5416) | |
| Arenig | China (AnHui) | Cyrtendoceras sp. (7830) Cyrtovaginoceras sp. (7845) | |
| Arenig | China (HeBei) | Cyrtendoceras sp. (7957) | |
| Chazyan | USA (New York) | Cyrtovaginoceras sp. (42808) | |
| Aseri | Norway (Nes-Hamar) | Cyrtendoceras sp. (56194) | |
| Late/Upper Llanvirn | Sweden | Cyrtendoceras sp. (2931) |