|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Pachecoa (Pachecoa) decisa
Bivalvia - Arcida - Arcidae
It was recombined as Limopsis decisus by Conrad (1860); it was recombined as Trinacria decisa by Cossmann (1893); 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).
|Year||Name and author|
|1833||Pectunculus decisus Conrad p. 39|
|1860||Limopsis decisus Conrad p. 297|
|1893||Trinacria decisa Cossmann p. 16|
|1898||Trigonoarca decisa Dall p. 606|
|1930||Halonanus decisus Stewart p. 78|
|1935||Trigonodesma decisa Reinhart p. 53|
|1936||Trigonarca decisa Cooke|
|1957||Pachecoa (Pachecoa) decisa Stenzel et al. p. 69|
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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.