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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Yurakia
Taxonomy
Yurakia was named by Rozova (1963) [Sepkoski's age data: Cm Fran-u Sepkoski's reference number: 618]. It is not extant. Its type is Yurakia yurakiensis.
It was assigned to Illaenuridae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
It was assigned to Illaenuridae by Jell and Adrain (2002); and to Ptychopariida by Sepkoski (2002).
Species
Y. yurakiensis (type species)
Synonymy list
| Year | Name and author |
|---|---|
| 1963 | Yurakia Rozova |
| 2002 | Yurakia Jell and Adrain |
| 2002 | Yurakia 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.
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Whittington et al. 1997, Aberhan et al. 2004, Hendy et al. 2009 | |||||
Age range: Yurakian or 495.00000 to 485.40000 Ma
Collections (8 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Taoyuanian | Russian Federation (Sakha) | Y. yurakiensis (133593) | |
| Taoyuanian | Russian Federation (Krasnoyar) | Y. sp. (132508) | |
| Yurakian | Russian Federation (Krasnoyar) | Y. sp., Y. yurakiensis (131095) Y. yurakiensis (131096 131097 131401 131405 131424) |