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Quadrisonia
Taxonomy
Quadrisonia was named by Rowell and Henderson (1978).
It was assigned to Acrotretinae by Puura and Holmer (1993); to Acrotretidae by Williams et al. (2000) and Popov et al. (2002); and to Acrotretida by Sepkoski (2002).
It was assigned to Acrotretinae by Puura and Holmer (1993); to Acrotretidae by Williams et al. (2000) and Popov et al. (2002); and to Acrotretida by Sepkoski (2002).
Species
Synonymy list
Year | Name and author |
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1978 | Quadrisonia Rowell and Henderson |
1993 | Quadrisonia Puura and Holmer |
2000 | Quadrisonia Williams et al. p. 118 |
2002 | Quadrisonia Popov et al. pp. 222, 225 |
2002 | Quadrisonia 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. †Quadrisonia Rowell and Henderson 1978
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†Quadrisonia declivis Koneva and Popov 1988
†Quadrisonia lavadamensis Popov et al. 2002
†Quadrisonia minor Rowell and Henderson 1978
†Quadrisonia suspensa Koneva and Popov 1988
Diagnosis
No diagnoses are available