|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Bivalvia - Pholadida - Vacunellidae
It was recombined as Pachymyonia morrisii by Dun (1932); it was recombined as Myonia morrisi by Runnegar (1967); it was recombined as Myonia (Pachymyonia) morrisi by Clarke (1992); it was recombined as Pachymyonia morrisi by Clapham (2015).
|Year||Name and author|
|1919||Maeonia morrisii Etheridge Jr. p. 186 figs. Pl 28, figs 7, 8|
|1932||Pachymyonia morrisii Dun p. 412 figs. Pl 51, fig 1|
|1932||Myonia davidis Dun p. 413 figs. Pl 51, fig 4; pl 52, fig 4|
|1932||Myonia farleyensis Dun p. 413 figs. Pl 51, figs 5,6; pl 52, fig 5|
|1967||Myonia morrisi Runnegar p. 53 figs. Pl 4, figs 3-5; pl 5, figs 1-11, 16-17; pl 12, fig 4|
|1992||Myonia (Pachymyonia) morrisi Clarke p. 30 figs. 16A-D|
|2015||Pachymyonia morrisi Clapham|
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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.