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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