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Quadrithyridinae
Taxonomy
Quadrithyridinae was named by Gourvennec (1994). Its type is Quadrithyris.
It was assigned to Xenomartiniidae by Williams et al. (2006).
It was assigned to Xenomartiniidae by Williams et al. (2006).
Subtaxa
Quadrithyris (type genus)
Synonymy list
| Year | Name and author |
|---|---|
| 1994 | Quadrithyridinae Gourvennec |
| 2006 | Quadrithyridinae Williams et al. p. 1863 |
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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.
Subfm. †Quadrithyridinae Gourvennec 1994
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G. †Quadrithyris Havlicek 1957
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†Quadrithyris minuens Barrande 1879
†Quadrithyris vijaicus Khodalevich 1951
Diagnosis
No diagnoses are available