|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Trilobita - Phacopida - Calymenidae
It was reranked as Onnicalymene by Sepkoski (2002) and Jell and Adrain (2003).
It was assigned to Phacopida by Sepkoski (2002); to Calymenidae by Jell and Adrain (2003); and to Flexicalymene by Dean (1962) and Hunda and Hughes (2007).
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.
|W. T. Dean 1962||Generally similar to Flexicalymene, but distinguished by anterior border, which is short and steeply inclined forwards, and by position of palpebral lobes, opposite third glabellar furrows and frontal portion of third glabellar lobes. Thorax with thirteen segments.|