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Siphonotreta
Taxonomy
Siphonotreta is a genus. It is not extant. Its type is Crania unguiculata. It is the type genus of Siphonotretidae.
It was assigned to Siphonotretidae by Williams et al. (2000); and to Acrotretida by Sepkoski (2002).
It was assigned to Siphonotretidae by Williams et al. (2000); and to Acrotretida by Sepkoski (2002).
Species
Synonymy list
| Year | Name and author |
|---|---|
| 2000 | Siphonotreta Williams et al. p. 139 |
| 2002 | Siphonotreta 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. †Siphonotreta
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†Siphonotreta americana Cooper 1956
†Siphonotreta curta Dana 1849
†Siphonotreta unguiculata Eichwald 1829
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: c = class, p = phylum, uc = unranked clade | |||||
| References: Aberhan et al. 2004, Nesnidal et al. 2013 | |||||
Age range: base of the Middle Cambrian to the top of the Wordian or 506.50000 to 264.28000 Ma
Collections (12 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Middle Cambrian | Czechia (Bohemia) | S. sp. (67775) | |
| Latorp | Estonia (Ida-Viru) | S. unguiculata (195591) | |
| Stairsian - Blackhillsian | Canada (Alberta) | S. tertia (186586) | |
| Billingen | Russian Federation | S. sp. (198706) | |
| Chazyan | USA (Tennessee) | S. americana (164884) | |
| Aseri | Estonia | S. sp. (56200 56201) | |
| Lasnamagi | Estonia | S. sp. (56210) | |
| Uhaku | Belarus | S. unguiculata (195467) | |
| Idavere | Lithuania | S. unquiculata (207205) | |
| Idavere | Latvia | S. unquiculata (207207) | |
| Wordian | Australia (New South Wales) | S. curta (98110) |