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Deltoideum
Taxonomy
Deltoideum was named by Rollier (1917) [Sepkoski's age data: J Bajo-u J Tith-u Sepkoski's reference number: 92]. It is not extant.
It was assigned to Gryphaeinae by Vokes (1980); and to Pterioida by Sepkoski (2002).
It was assigned to Gryphaeinae by Vokes (1980); and to Pterioida by Sepkoski (2002).
Species
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.
G. †Deltoideum Rollier 1917
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Subg. †Deltoideum (Boreiodeltoideum) Kosenkoa 2016
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†Deltoideum (Boreiodeltoideum) anabarensis Bodylevsky 1949
†Deltoideum (Boreiodeltoideum) praeanabarensis Zakharov 1963
Subg. †Deltoideum (Deltoideum) Rollier 1917
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†Deltoideum (Deltoideum) delta Smith 1817
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Invalid names: Liostrea cucurbita Zakharov 1966 [synonym], Liostrea gibberosa Zakharov 1974 [synonym], Liostrea moreana Pugaczewska 1971 [synonym], Liostrea oxfordiana Pugaczewska 1971 [synonym], Liostrea planoconvexa Zakharov 1974 [synonym], Liostrea quadrangularis Pugaczewska 1971 [synonym], Liostrea unciformis Pugaczewska 1971 [synonym], Liostrea uralensis Zakharov 1972 [synonym], Ostrea (Liostrea) delta Arkell 1932 [synonym], Ostrea deltoidea Sowerby 1818 [synonym], Ostrea expansa Sowerby 1821 [synonym], Ostrea hemideltoidea Gerasimov 1955 [synonym], Ostrea unciformis Buvignier 1852 [synonym]
Diagnosis
No diagnoses are available