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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) and Crick (1981).
It was assigned to Endoceratina by Flower (1958); and to Endocerida by Teichert et al. (1964) and 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: Kiessling 2004, Aberhan et al. 2004 | |||||
Age range: base of the Chazyan to the top of the Late/Upper Llanvirn or 470.00000 to 460.90000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Dawan | China (Hunan) | Cyrtendoceras sp. (7691) | |
| Arenig | China (Sichuan) | Cyrtovaginoceras sp. (5416) | |
| Arenig | China (HeBei) | Cyrtendoceras sp. (7957) | |
| Arenig | China (JiangSu) | Cyrtovaginoceras sp. (7878) | |
| Arenig | China (Guizhou) | Cyrtovaginoceras sp. (4769 7356) | |
| Arenig | China (AnHui) | Cyrtendoceras sp. (7830) Cyrtovaginoceras sp. (7845) | |
| Chazyan | USA (New York) | Cyrtovaginoceras sp. (42808) | |
| Aseri | Norway (Nes-Hamar) | Cyrtendoceras sp. (56194) | |
| Late/Upper Llanvirn | Sweden | Cyrtendoceras sp. (2931) |