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Haplothecia
Taxonomy
Haplothecia was named by Frech (1885) [Sepkoski's age data: D Give-u D Fras-u Sepkoski's reference number: 174,680]. It is not extant.
It was assigned to Phillipsastraeinae by Hill (1956); to Hexagonariinae by Hill (1981); and to Rugosa by Sepkoski (2002).
It was assigned to Phillipsastraeinae by Hill (1956); to Hexagonariinae by Hill (1981); and to Rugosa by Sepkoski (2002).
Species
Species lacking formal opinion data
Synonymy list
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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
No diagnoses are available