|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Gastropoda - Ranellidae
It was recombined as Cymatium trigonum by Fischer-Piette (1942); it was recombined as Cymatium (Septa) trigonum by Kilias (1973); it was recombined as Cymatium (Monoplex) trigonum by Beu (1985); it was recombined as Monoplex trigonus by Beu (2010).
|Year||Name and author|
|1791||Murex trigonus Gmelin p. 3549|
|1942||Cymatium trigonum Fischer-Piette p. 217|
|1973||Cymatium (Septa) trigonum Kilias p. 191|
|1985||Cymatium (Monoplex) trigonum Beu p. 58|
|2010||Monoplex trigonus Beu p. 175|
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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.