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Anazyga
Taxonomy
Anazyga was named by Davidson (1882) [Sepkoski's age data: O Cara-l O Cara-u Sepkoski's reference number: 683]. It is the type genus of Anazyginae, Anazygidae.
It was assigned to Anazyginae by Williams et al. (2002); to Atrypida by Sepkoski (2002); and to Zygospirinae by Zhan and Jin (2005).
It was assigned to Anazyginae by Williams et al. (2002); to Atrypida by Sepkoski (2002); and to Zygospirinae by Zhan and Jin (2005).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1882 | Anazyga Davidson |
| 2002 | Anazyga Sepkoski |
| 2002 | Hallina Sepkoski |
| 2002 | Nuria Sepkoski |
| 2002 | Anazyga Williams et al. p. 1440 |
| 2005 | Anazyga Zhan and Jin |
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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. †Anazyga Davidson 1882
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†Anazyga aequivalvis Twenhofel 1928
†Anazyga orbis Reed 1917
†Anazyga recurvirostra Hall 1847
Invalid names: Hallina [synonym], Nuria [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: g = genus, f = family, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Meyer et al. 2009, Hendy 2009, Nesnidal et al. 2013 | |||||
Age range: base of the Middle Ordovician to the top of the Eastonian or 471.30000 to 449.00000 Ma
Collections (212 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ordovician | USA (Tennessee) | A. sp. (1959) | |
| Middle Ordovician | USA (New York) | A. sp. (333 334 430) | |
| Soudleyan - Marshbrookian | China (Shaanxi) | Hallina sp. (8540) | |
| Caradoc | USA (Georgia) | Zygospira recurvirostris (32456 32457 32458 32547 32552 32553 32554 32557 32558 32559 32560 32561 32562 32563 32570 32571 32631 32632 32633 32634 32635 32653 32656 32657 32658 32660 32779 32783 32787 32791 32798 32823 32824 32825 32826 32832 32872 32873 32874 32875 32879 32880 32881 32882 33065 33182 33186 33188) | |
| Caradoc | USA (Virginia) | Zygospira recurvirostris (34277 34279 34281 34324 34326 34327 34328) | |
| Caradoc | USA (Tennessee) | A. sp. (1686 1687 1693 1702 1939 1946 1960) | |
| Caradoc | Canada (Ontario) | A. sp. (336) Zygospira recurvirostris (26274 26275 26276) | |
| Late/Upper Ordovician | USA (Maryland) | Zygospira recurvirostra (407) | |
| Turinian | Canada (Ontario) | Zygospira recurvirostris (26174 26175 26188 26191) | |
| Turinian | Canada (British Columbia) | A. bellicostata (192182) | |
| Turinian | USA (Missouri) | Zygospira recurvirostra (175724) | |
| Turinian | Canada (Quebec) | Zygospira recurvirostris (174157) | |
| Turinian | USA (Tennessee) | Zygospira recurvirostris (5347) | |
| Mohawkian | USA (Kentucky) | A. sp. (86065) | |
| Mohawkian | USA (Tennessee) | A. sp. (86085 86087 86088 86091 86095 86098 86099 86106 86109 86111 86112 86113 86114 86124 86128 86130 86217) | |
| Mohawkian | USA (New York) | A. recurvirostris (104577 104581 104585 104586 104587 104588 104591 104593 104594 104603 104605 104606 104618 104622 104623 104624 104625 104627) | |
| Franklinian - Edenian | USA (Tennessee) | Zygospira recurvirostris (5371) | |
| Blackriveran | Canada (Ontario) | Hallina canadensis (55999) | |
| Kirkfieldian | Canada (Ontario) | Zygospira recurvirostris (26192) | |
| Kirkfieldian | USA (Illinois, Iowa) | Zygospira recurvirostris (23797 23798) | |
| Rocklandian | USA (Tennessee) | A. sp. (1937 1955 1956 1957) Zygospira recurvirostris (5346) | |
| Rocklandian | USA (Minnesota) | Zygospira recurvirostris (219962) | |
| Rocklandian - Kirkfieldian | USA (Illinois, Iowa) | Zygospira recurvirostris (23796) | |
| Rocklandian - Shermanian | USA (Minnesota) | Zygospira recurvirostris (23277 23290) | |
| Shermanian | USA (Tennessee) | A. sp. (1694 1695 1696 1697 1698 1924 1925 1953 1954) Zygospira recurvirostris (5350 5357 5358 5360 5368 5369) | |
| Shermanian | USA (Illinois, Iowa) | Zygospira recurvirostris (23799 23800 23801 23803 23804 23805 23806) | |
| Shermanian | USA (Minnesota) | Zygospira recurvirostris (23092 23278 23279) | |
| Burrellian | United Kingdom (Scotland) | Zygospira orbis (165046) | |
| Keila | Estonia | A. sp. (197520) | |
| Chatfieldian | USA (Kentucky) | A. sp. (48796 48797 48798 48799 48800 48801 48802 48803 48804 48805 48808 48809 48810 48811 48812 48813) Zygospira recurvirostris (34563) | |
| Chatfieldian | USA (New York) | A. sp. (433) | |
| Chatfieldian | Canada (Ontario) | Zygospira recurvirostris (26263 26267 26268 26269 26270 26271 26273 26277) | |
| Oandu | Estonia | A. sp. (197550) | |
| Katian | China (Xinjian) | A. sp. (185164 185166 185167 185170) | |
| Cheneyan | United Kingdom (Scotland) | Zygospira orbis (164412) | |
| Eastonian - Onnian | Australia (Tasmania) | Hallina sp. (2693) | |
| Eastonian | Australia (New South Wales) | Hallina sp. (2699 2700 2702) | |
| Edenian | USA (Illinois, Iowa) | Zygospira recurvirostris (23807) | |
| Edenian - Maysvillian | Canada (Ontario) | Zygospira recurvirostris (26293 26294) | |
| Maysvillian | Canada (Manitoba) | Zygospira recurvirostra (174050) | |
| Richmondian | USA (Wyoming) | Zygospira aequivalvis (13497 65239) | |
| Richmondian | Canada (Quebec) | Zygospira recurvirostris (173860 173873 173875 174027 174028) | |
| Richmondian | USA (Michigan) | Zygospira recurvirostris (26312 26313 26316) | |
| Richmondian | USA (Idaho) | Zygospira recurvirostris (183358) | |
| Ashgill | USA (Tennessee) | Zygospira recurvirostris (5393) | |
| Ashgill | China (Hubei) | A. sp. (114989) | |
| Ashgill | Canada (Québec) | A. aequivalvis (24584) | |
| Ashgill | China (HaiNanDao) | Hallina sp. (4684) |