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Stygina
Taxonomy
Stygina was named by Salter (1853). Its type is Asaphus latifrons.
It was assigned to Stygininae by Owen and Bruton (1980), Owen (1981) and Whittington (2000); to Corynexochida by Sepkoski (2002); and to Styginidae by Warburg (1925), Skjeseth (1955) and Jell and Adrain (2002).
It was assigned to Stygininae by Owen and Bruton (1980), Owen (1981) and Whittington (2000); to Corynexochida by Sepkoski (2002); and to Styginidae by Warburg (1925), Skjeseth (1955) and Jell and Adrain (2002).
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1853 | Stygina Salter |
| 1925 | Stygina Warburg |
| 1955 | Stygina Skjeseth |
| 1980 | Stygina Owen and Bruton |
| 1981 | Stygina Owen |
| 2000 | Stygina Whittington |
| 2002 | Stygina Jell and Adrain p. 449 |
| 2002 | Stygina Sepkoski |
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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. †Stygina Salter 1853
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Subg. †Stygina (Protostygina) Prantl and Pribyl 1949
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†Stygina (Protostygina) bohemica Barrande 1872
†Stygina angustifrons Warburg 1925
†Stygina latifrons Portlock 1843
†Stygina latifrons extensa Reed 1904
†Stygina minor Skjeseth 1955
†Stygina murchisoni Reed 1914
†Stygina plautoni Schmidt 1904
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Whittington et al. 1997, Aberhan et al. 2004 | |||||
Age range: base of the Darriwilian to the top of the Harju or 467.30000 to 443.80000 Ma
Collections (45 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Arenig | China (QingHai) | S. sp. (8687) | |
| Darriwilian | Russian Federation (Siberia) | S. minor (205379) | |
| Lasnamagi - Kukruse | Estonia (Harjumaa) | S. plautoni (164284) | |
| Costonian - Harnagian | Sweden | S. sp. (2765) | |
| Soudleyan - Marshbrookian | Norway | S. sp. (2948) | |
| Caradoc | United Kingdom (Scotland) | S. sp. (188938) | |
| Keila - Oandu | Norway | S. minor (164286) | |
| Oandu | Norway (Asker) | S. minor (163199 163200 163204 163205) | |
| Oandu | Norway | S. minor (162531 162532 163187) | |
| Oandu - Rakvere | Norway | S. minor (162633 163277) | |
| Katian | Norway | S. extensa (159377) | |
| Katian - Hirnantian | Sweden (Dalarne) | S. angustifrons (73413) | |
| Rakvere - Nabala | Norway | S. minor (162533) | |
| Rakvere - Nabala | Norway (Ringerike) | S. minor (162221) | |
| Nabala | Norway | S. minor (162634) | |
| Nabala | Norway (Baerum) | S. minor (163197) | |
| Nabala - Vormsi | Sweden (Dalarne) | S. latifrons (164283) | |
| Harju | Sweden | S. sp. (378) | |
| Pusgillian | Norway (Skien - Langesund) | S. minor (163359) | |
| Pusgillian - Cautleyan | Norway (Asker) | S. minor (163351) | |
| Pirgu | Norway | S. extensa, S. latifrons (158962) | |
| Pusgillian - Rawtheyan | Norway (Ringerike) | S. minor, S. latifrons (163026) | |
| Ashgill | USA (Nevada) | S. sp. (359) | |
| Pirgu - Hirnantian | Sweden (Dalarne) | S. angustifrons (73408) | |
| Cautleyan - Rawtheyan | United Kingdom (Wales) | S. sp. (8290 8291) | |
| Cautleyan - Rawtheyan | Norway (Oslo Asker) | S. latifrons (163342) | |
| Cautleyan - Rawtheyan | Belgium | S. laevis (185303) | |
| Rawtheyan | Norway (Oslo-Asker) | S. sp. (366) | |
| Rawtheyan | United Kingdom (England) | S. sp. (3667) | |
| Rawtheyan | Norway | S. latifrons (163020 163339 163354 163362) | |
| Rawtheyan | United Kingdom (Wales) | S. sp. (3675) | |
| Rawtheyan | Norway (Oslo) | S. latifrons (73439 163307) | |
| Rawtheyan - Hirnantian | Norway | S. angustifrons (163364) | |
| Hirnantian | Sweden | S. latifrons (164285) |