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Taxonomy
Troedssonia was named by Poletaeva (1960) [Sepkoski's age data: Cm Trep-u O Trem-u Sepkoski's reference number: 927]. It is not extant.
It was reranked as Platypeltoides (Troedssonia) by Peng (1992).
It was assigned to Platypeltoides by Peng (1992); and to Ptychopariida by Sepkoski (2002).
It was reranked as Platypeltoides (Troedssonia) by Peng (1992).
It was assigned to Platypeltoides by Peng (1992); and to Ptychopariida by Sepkoski (2002).
Species lacking formal opinion data
Synonymy list
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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.
Subg. †Platypeltoides (Troedssonia) Poletaeva 1960
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†Platypeltoides (Troedssonia) wimani Troedsson 1937
Diagnosis
No diagnoses are available
Measurements
No measurements are available
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| Source: f = family, o = order, c = class | |||||
| References: Aberhan et al. 2004, Hendy 2009, Hendy et al. 2009 | |||||
Age range: Niuchehean or 489.50000 to 485.40000 Ma
Collections (11 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Furongian | Russian Federation (Gorny Altai) | Platypeltoides wimani (203914 203915 203916) | |
| Batyrbaian - Tremadocian | Russian Federation (Siberia) | Platypeltoides wimani (205624) | |
| Niuchehean | China (Hunan) | Platypeltoides wimani (126682 126683) Troedssonia elongata, Troedssonia wimani (126731) Troedssonia longiforma, Troedssonia wimani (126730) Troedssonia subquadrata (126728) Troedssonia wimani (107332 107335) |