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Taxonomy
Llandovacaste was named by Edgecombe (1993) [Sepkoski's age data: S Ldov-m Sepkoski's reference number: 1055]. Its type is Acaste birminghamensis.
It was assigned to Phacopida by Sepkoski (2002); and to Acastidae by Edgecombe (1993) and Jell and Adrain (2002).
It was assigned to Phacopida by Sepkoski (2002); and to Acastidae by Edgecombe (1993) and Jell and Adrain (2002).
Species
Synonymy list
Year | Name and author |
---|---|
1993 | Llandovacaste Edgecombe p. 538 |
2002 | Llandovacaste Jell and Adrain p. 399 |
2002 | Llandovacaste 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.
Diagnosis
Reference | Diagnosis | |
---|---|---|
G. D. Edgecombe 1993 | Auxilliary impression system including scars on median region of frontal glabellar lobe; genal angle with slender spine; pygidium large, faintly pointed posteromedially, with eight defined pleural furrows, 12 axial rings, posterior ring furrows curved backward medially; border strongly defined [plesiomorphies: LI long (exsag.); Sl inclined abaxially, with proximal bifurcation] |