|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||External Literature Search||Age range and collections|
Trilobita - Redlichiida - Holmiidae
It was synonymized subjectively with Mesonacis by Walcott (1910).
It was assigned to Holmiidae by Whittington et al. (1997); to Olenellida by Sepkoski (2002); and to Holmiinae by Palmer and Repina (1993), Lieberman (1999) and Ebbestad et al. (2003).
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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.
|A. R. Palmer and L. N. Repina 1993||Holmiinae with posterior margin of cephalon nearly straight; intergenal spines not developed. Glabella with prominent axial spine on anterior margin of occipital ring and encroaching on occipital furrow. Posterior tips of ocular lobes opposite or posterior to LI. Thorax narrow; pleural spines short, not constricted at base. Pygidium small, subquadrate.|