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Spisula (Hemimactra)

Bivalvia - Venerida - Mactridae

Taxonomy
Hemimactra was named by Swainson (1840) [Sepkoski's age data: T R]. It is extant.

It was reranked as Spisula (Hemimactra) by Glenn (1904), Olsson (1914), Packard (1916), Clark and Arnold (1923), Gardner (1947), Signorelli (2019).

It was assigned to Veneroida by Sepkoski (2002); to Mactridae by Hendy et al. (2008); and to Spisula by Glenn (1904), Olsson (1914), Packard (1916), Clark and Arnold (1923), Gardner (1947), Signorelli (2019).

Subtaxa
Spisula (Hemimactra) confraga, Spisula (Hemimactra) harrisi, Spisula (Hemimactra) raveneli (syn. Spisula sayii), Spisula (Hemimactra) selbyensis, Spisula (Hemimactra) solidissima (syn. Mactra gigantea, Mactra similis, Mactra procera), Spisula (Hemimactra) sookensis, Spisula (Hemimactra) subparilis
Species lacking formal opinion data
Hemimactra craspeota, Hemimactra duplinensis, Hemimactra modicella, Hemimactra solidissina, Hemimactra solidssima, Mactra asperaeformis, Mactra polynyma, Mactra snatolensis, Mactra xenophonti, Spisula addicotti, Spisula aequilatera, Spisula aequilaterala, Spisula albaria, Spisula albaria, Spisula albirupina, Spisula amekiensis, Spisula bisculpurtata, Spisula californica, Spisula catiliformis, Spisula chulgunensis, Spisula coosensis, Spisula couttsi, Spisula cutirostrata, Spisula densa, Spisula densata, Spisula dodona, Spisula eugenense, Spisula evalensis, Spisula ezodensata, Spisula funerata, Spisula grayana, Spisula hanniballi, Spisula hauitaca, Spisula ikusaensis, Spisula inaequilatera, Spisula inaequilateralis, Spisula incrassata, Spisula matleyi, Spisula merriami, Spisula mississippiensis, Spisula modicella, Spisula modicella, Spisula modicella, Spisula ochotensis, Spisula onnechiuria, Spisula onnechiuria, Spisula ovalis, Spisula packardi, Spisula panzana, Spisula rushi, Spisula sachalinensis, Spisula solida, Spisula solidissima, Spisula subtruncata, Spisula subtruncata, Spisula tigilensis, Spisula trangulata, Spisula triangulata
Entered
by J. Sepkoski on 2003-01-23; modified by A. Hendy on 2013-04-30

Synonymy list
YearName and author
1840Hemimactra Swainson p. 369
1904Spisula (Hemimactra) Glenn p. 286
1914Spisula (Hemimactra) Olsson p. 14
1916Spisula (Hemimactra) Packard p. 283
1923Spisula (Hemimactra) Clark and Arnold p. 153 figs. Plate 19, Figs 1a, 1b, 4
1947Spisula (Hemimactra) Gardner p. 220
2002Hemimactra Sepkoski
2008Hemimactra Hendy et al.
2019Spisula (Hemimactra) Signorelli p. 52

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Spiralia
superphylumLophotrochozoa
phylumMollusca
classBivalvia
subclassAutobranchia(Groblen 1894)
infraclassHeteroconchia(Gray 1854)
RankNameAuthor
—EuheterodontaGiribet and Distel 2003
superorderImparidentiaBieler 2014
—NeoheterodonteiTaylor et al. 2007
orderVenerida(Gray 1854)
superfamilyMactroidea(Lamarck 1809)
familyMactridaeLamarck 1809
subfamilyMactrinaeLamarck 1809
genusSpisulaGray 1837
subgenusHemimactra(Swainson 1840)

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.

Subg. Spisula (Hemimactra) Swainson 1840
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Invalid names: Spisula sayii Gray 1837 [synonym]
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Invalid names: Mactra gigantea Lamarck 1818 [synonym], Mactra procera Dillwyn 1817 [synonym], Mactra similis Say 1822 [synonym], Spisula solidissima acadica Matthew 1874 [invalid subgroup], Spisula solidissima peninsulae Smith 1937 [invalid subgroup]
†Spisula (Hemimactra) sookensis Clark and Arnold 1923
Diagnosis
No diagnoses are available