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Shumardites
Taxonomy
Shumardites was named by Smith (1903) [Sepkoski's age data: C Step-u Tr Indu-l Sepkoski's reference number: 1066]. Its type is Shumardites simondsi. It is the type genus of Shumarditidae.
It was assigned to Goniatitida by Sepkoski (2002); and to Shumarditidae by Korn (2006) and Furnish et al. (2009).
It was assigned to Goniatitida by Sepkoski (2002); and to Shumarditidae by Korn (2006) and Furnish et al. (2009).
Species
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1903 | Shumardites Smith p. 134 |
| 1950 | Postaktubites Ruzhencev |
| 2002 | Shumardites Sepkoski |
| 2006 | Postaktubites Korn |
| 2006 | Shumardites Korn |
| 2009 | Shumardites Furnish et al. p. 139 |
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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. †Shumardites Smith 1903
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†Shumardites aktubensis Ruzhentsev 1950
†Shumardites confessus Ruzhentsev 1939
†Shumardites cuyleri Plummer and Scott 1937
†Shumardites librovitchi Ruzhentsev 1939
†Shumardites simondsi Smith 1903
†Shumardites umbilicatus Ehiro and Ozawa 2020
Invalid names: Postaktubites Ruzhencev 1950 [synonym]
Diagnosis
No diagnoses are available
Measurements
| part | N | mean | minimum | maximum | median | s.d. | |
|---|---|---|---|---|---|---|---|
| shell height | 10 | 7.28 | 2.60 | 29.0 | 7.00 | 7.96 | |
| shell diameter | 10 | 19.4 | 7.60 | 68.0 | 17.6 | 18.8 | |
| shell inflation | 10 | 6.41 | 3.20 | 20.0 | 4.50 | 6.18 |
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| Source: o = order, c = class | |||||
| References: Kiessling 2004, Kiessling 2003 | |||||
Collections (20 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Gzhelian | Russian Federation | S. confessus (172256 172260 172265) | |
| Gzhelian | Kazakhstan | S. aktubensis (81344 81345 172281) S. confessus, S. librovitchi (172282) | |
| Gzhelian | USA (Texas) | S. cuyleri (128645) S. simondsi (128678 131372 131551 131552) | |
| Virgilian | USA (Texas) | S. cuyleri (217905 217906 217908 217915 217952 217979 218029) | |
| Asselian | Japan | S. umbilicatus (214599) |