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Youngia
Taxonomy
Youngia was named by Lindström (1885) [Sepkoski's age data: S Ldov-m].
It was assigned to Cheiruridae by Jell and Adrain (2002); and to Phacopida by Sepkoski (2002).
It was assigned to Cheiruridae by Jell and Adrain (2002); and to Phacopida by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
Year | Name and author |
---|---|
1885 | Youngia Lindström |
2002 | Youngia Jell and Adrain p. 462 |
2002 | Youngia 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. †Youngia Lindström 1885
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†Youngia boucoti Chatterton and Perry 1984
†Youngia johnsoni Chatterton and Perry 1984
†Youngia kathyae Chatterton and Perry 1984
†Youngia steineri Chatterton and Perry 1984
†Youngia trispinosus Young 1868
Diagnosis
No diagnoses are available