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| Morphology | Ecology and taphonomy | External Literature Search | Age range and collections |
Khetatheca
Taxonomy
Khetatheca was named by Missarzhevsky (1989) [Sepkoski's age data: V N-Da Sepkoski's reference number: 1006]. Its type is Circotheca cotuiensis.
It was assigned to Circothecida by Sepkoski (2002); and to Orthothecida by Kouchinsky et al. (2017).
It was assigned to Circothecida by Sepkoski (2002); and to Orthothecida by Kouchinsky et al. (2017).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 1989 | Khetatheca Missarzhevsky |
| 2002 | Khetatheca Sepkoski |
| 2017 | Khetatheca Kouchinsky et al. p. 389 |
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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: p = phylum | |||||
| Reference: Hendy et al. 2009 | |||||
Age range: Tommotian or 525.50000 to 521.00000 Ma
Collections (16 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Nemakit-Daldynian - Tommotian | Russian Federation (Sakha) | K. cotuiensis (99229) | |
| Tommotian | Russian Federation (Yakutia) | Turcutheca cotuiensis (45847 45849) | |
| Tommotian | Russian Federation (Krasnoyarsk Krai) | K. cotuiensis (233166 233194 233198 233206) Turcutheca cotuiensis (50429 96392) | |
| Tommotian | Russian Federation (Sakha) | K. cotuiensis (233167) | |
| Tommotian | Russian Federation (Yakutiya) | Turcutheca cotuiensis (96248 96395) | |
| Tommotian | Russian Federation (Siberia) | Turcutheca cotuiensis (50428 50430 50431 50432) |