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Pachecoa (Pachecoa) decisa

Bivalvia - Arcida - Arcidae

Taxonomy
Pectunculus decisus was named by Conrad (1833). Its type specimen is ANSP 30539, a shell, and it is a 3D body fossil.

It was recombined as Limopsis decisus by Conrad (1860); it was recombined as Trinacria decisa by Cossmann (1893) and Harris (1919); it was recombined as Trigonoarca decisa by Dall (1898); it was recombined as Halonanus decisus by Stewart (1930); it was recombined as Trigonodesma decisa by Reinhart (1935); it was recombined as Trigonarca decisa by Cooke (1936); it was recombined as Pachecoa (Pachecoa) decisa by Stenzel et al. (1957).

Sister species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1833Pectunculus decisus Conrad p. 39
1860Limopsis decisus Conrad p. 297
1893Trinacria decisa Cossmann p. 16
1898Trigonoarca decisa Dall p. 606
1919Trinacria decisa Harris p. 38
1930Halonanus decisus Stewart p. 78
1935Trigonodesma decisa Reinhart p. 53
1936Trigonarca decisa Cooke
1957Pachecoa (Pachecoa) decisa Stenzel et al. p. 69

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Spiralia
Schizocoela
phylumMollusca
classBivalvia
Eubivalvia
subclassAutobranchia(Groblen 1894)
infraclassPteriomorphia(Beurlen 1944)
RankNameAuthor
OstreomorphiFerussac 1822
ArcioniGray 1854
orderArcida(Stoliczka 1871)
superfamilyArcoidea(Lamarck 1809)
familyArcidaeLamarck 1809
subfamilyNoetiinaeStewart 1930
tribeTrinacriini(MacNeil 1937)
genusPachecoaHarris 1919
subgenusPachecoa
speciesdecisa(Conrad 1833)

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