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Megayoldia (Megayoldia) thraciaeformis

Bivalvia - Protobranchia - Sareptidae

Taxonomy
Nucula thraciaeformis was named by Storer (1838) [DISTRIBUTION: North Atlantic (Recent); western North America (Oligocene-Pleistocene). HISTORY: Type species by original designation of Megayoldia Verrill and Bush 1897 [Coan et al. 2000]].

It was recombined as Megayoldia thraciaeformis by Verrill and Bush (1871); it was recombined as Yoldia (Megayoldia) thraciaeformis by Zhidkova (1968); it was recombined as Yoldia thraciaeformis by Gladenkov (1984); it was recombined as Megayoldia (Megayoldia) thraciaeformis by Kafanov et al. (2001).

Synonyms
  • Yoldia suavis was named by Konova (1984) [DISTRIBUTION: Cenozoic; North Pacific.]. It is not a trace fossil.

    It was synonymized subjectively with Megayoldia (Megayoldia) thraciaeformis by Kafanov et al. (2001).
  • Yoldia regularis was named by Verrill (1884) [HISTORY: Synonym of Nucula thraciaeformis Storer 1838; type species by original designation of Microyoldia Verrill and Bush 1897 [Coan et al. 2000].]. It is extant.

    It was synonymized subjectively with Nucula thraciaeformis by Coan et al. (2000).
  • Nucula navicularis was named by Couthouy (1831) [HISTORY: Synonym of N. thraciaeformis Storer 1838 [Coan et al. 2000].]. It is extant.

    It was synonymized subjectively with Nucula thraciaeformis by Coan et al. (2000).
  • Yoldia angularis was named by Möller (1842) [HISTORY: Synonym of N. thraciaeformis Storer 1838 [Coan et al. 2000].]. It is extant.

    It was synonymized subjectively with Nucula thraciaeformis by Coan et al. (2000).
  • Portlandia dalli was named by Krause (1885) [HISTORY: Synonym of N. thraciaeformis Storer 1838 [Coan et al. 2000].]. It is extant.

    It was synonymized subjectively with Nucula thraciaeformis by Coan et al. (2000).
  • Nucula groenlandica was named by Posselt (1898) [HISTORY: Synonym of N. thraciaeformis Storer 1838 [Coan et al. 2000].]. It is extant.

    It was synonymized subjectively with Nucula thraciaeformis by Coan et al. (2000).
  • Yoldia secunda was named by Dall (1916) [HISTORY: Synonym of N. thraciaeformis Storer 1838 [Coan et al. 2000].]. It is extant.

    It was synonymized subjectively with Nucula thraciaeformis by Coan et al. (2000).
  • Yoldia scapha was named by Yokoyama (1926) [HISTORY: Synonym of N. thraciaeformis Storer 1838 [Coan et al. 2000].]. It is extant.

    It was synonymized subjectively with Nucula thraciaeformis by Coan et al. (2000); it was synonymized subjectively with Megayoldia (Megayoldia) thraciaeformis by Kafanov et al. (2001).
  • Microyoldia ochotensis was named by Scarlato (1981) [HISTORY: Synonym of N. thraciaeformis Storer 1838 [Coan et al. 2000].]. It is extant.

    It was synonymized subjectively with Nucula thraciaeformis by Coan et al. (2000).
Synonymy list
YearName and author
1831Nucula navicularis Couthouy p. 178
1838Nucula thraciaeformis Storer
1842Yoldia angularis Möller p. 92
1871Megayoldia thraciaeformis Verrill and Bush
1884Yoldia regularis Verrill
1885Portlandia dalli Krause p. 27
1898Nucula groenlandica Posselt
1916Yoldia secunda Dall p. 11
1926Yoldia scapha Yokoyama p. 247
1968Yoldia (Megayoldia) thraciaeformis Zhidkova p. 73
1981Microyoldia ochotensis Scarlato p. 212
1984Yoldia thraciaeformis Gladenkov p. 173
1984Yoldia suavis Konova p. 171 figs. pl. 4, fig. 12
2001Megayoldia (Megayoldia) thraciaeformis Kafanov et al.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classBivalvia
orderProtobranchiaPelseneer 1889
RankNameAuthor
superorderNuculaniformiiCarter et al. 2000
orderNuculanida(Carter et al. 2000)
superfamilyNuculanoideaAdams and Adams 1858
familySareptidaeAdams 1860
subfamilyYoldiinae(Dall 1908)
genusMegayoldiaVerrill and Bush 1897
subgenusMegayoldiaVerrill and Bush 1897
speciesthraciaeformis(Storer 1838)

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