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Zygospiraella
Taxonomy
Zygospiraella was named by Nikiforova (1961).
It was assigned to Atrypidae by Copper (1982); to Atrypinae by Williams et al. (2002); to Atrypida by Sepkoski (2002); and to Protatrypinae by Baarli et al. (2022).
It was assigned to Atrypidae by Copper (1982); to Atrypinae by Williams et al. (2002); to Atrypida by Sepkoski (2002); and to Protatrypinae by Baarli et al. (2022).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1961 | Zygospiraella Nikiforova |
| 1982 | Zygospiraella Copper |
| 2002 | Megumatrypa Sepkoski |
| 2002 | Zygospirella Sepkoski |
| 2002 | Zygospiraella Williams et al. p. 1400 |
| 2022 | Zygospiraella Baarli et al. pp. 2145920-10 |
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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. †Zygospiraella Nikiforova 1961
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†Zygospiraella duboisi Verneuil 1845
†Zygospiraella venusta Rong and Yang 1981
Invalid names: Megumatrypa [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | |||||
|---|---|---|---|---|---|---|---|
| height | 1 | 4.72 |
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| Source: g = genus, c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Hendy et al. 2009, Nesnidal et al. 2013 | |||||
Collections (76 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Ashgill | Canada (Québec) | Z. sp. (24586) | |
| Silurian | USA (California) | Atrypa duboisi (229257) | |
| Rhuddanian | Canada (Quebec) | Z. sp. (113165 158624) | |
| Rhuddanian | China (Guizhou) | Z. venusta (151953 151956 151957 151960 151961) | |
| Rhuddanian | Norway | Z. duboisi (14322) | |
| Rhuddanian | Russian Federation | Z. sp. (152991) | |
| Rhuddanian | Kazakhstan (South Central) | Z. duboisi (151925 151927 151928 151930 151931) | |
| Juuru | Estonia (Jõgeva) | Z. duboisi (197467 206933) | |
| Juuru | Estonia (Hiiu) | Z. duboisi (195420 206927) | |
| Juuru | Estonia (Viljandi) | Z. duboisi (193804 206909 206919) | |
| Juuru | Estonia (Rapla) | Z. duboisi (206915) | |
| Juuru | Estonia (Järva) | Z. duboisi (193824 206910) | |
| Juuru | Estonia (Lääne) | Z. duboisi (193730 195635 195636) | |
| Juuru | Estonia | Z. duboisi (174162 174163 193729 195423 206881 206886) | |
| Rhuddanian - Aeronian | Russian Federation (Siberia) | Z. duboisi (206465) Z. planoconvexa, Z. duboisi (206484 206542 206543 206560) | |
| Alexandrian | Canada (Québec) | Z. planoconvexa (24398 24400 24401 24404 24405 24406 24407 24448) Z. sp. (24587 25154) | |
| Llandovery | Canada (Ontario) | Z. planoconvexa (508) | |
| Llandovery | China (Hubei) | Z. sp. (25793) | |
| Llandovery | United Kingdom (England) | Zygospirella sp. (509) | |
| Llandovery | Russian Federation (Siberia) | Zygospira duboisi (206306 206317 206319) | |
| Llandovery | China (Guizhou) | Z. sp. (25846 25869) Z. venusta (27898) | |
| Alexandrian - Niagaran | Canada (Québec) | Z. sp. (25155) | |
| Raikkula | Estonia (Viljandi) | Z. duboisi (193663) | |
| Raikkula | Estonia | Z. duboisi (206959) | |
| Aeronian | China (Hubei) | Z. sp. (27813) | |
| Aeronian | China (Yunnan) | Z. sp. (27849) | |
| Aeronian | China (Guizhou) | Z. sp. (27835) Z. venusta (27847) | |
| Aeronian - Telychian | China (Yunnan) | Z. sp. (27837) | |
| Adavere | Estonia (Järva) | Z. duboisi (206947) | |
| Telychian | China (Hubei) | Z. crassicosta (27779) Z. sp. (27841) | |
| Telychian | Russian Federation (Severnaya Zemlya) | Z. sp. (85024) | |
| Telychian | China | Z. sp. (27773) | |
| Telychian | China (Anhui) | Z. sp. (27737) | |
| Telychian | China (Yunnan) | Z. sp. (27850) | |
| Wenlock | Russian Federation (Tyva) | Zygospirella duboisi (78716) | |
| Pridoli | Ukraine | Zygospirella sublepida (13874) |