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Microtrigonia
Taxonomy
Microtrigonia is a genus. It is not extant.
It was assigned to Trigoniidae by Hayami (1975); and to Trigonioida by Sepkoski (2002).
It was assigned to Trigoniidae by Hayami (1975); and to Trigonioida by Sepkoski (2002).
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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. †Microtrigonia
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Diagnosis
No diagnoses are available