|Basic info||Taxonomic history||Classification||Relationships|
|Morphology||Ecology and taphonomy||Age range and collections|
Trilobita - Phacopida - Dalmanitidae
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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.
|D. M. Delo 1935||Dalmanitinae without frontal border; frontal lobe more or less detached, protuberant; second and third glabellar furrows straight, rather narrow; eyes varying somewhat in position, usually large; genal spines may be present. Pygidium broadly subtriangular, border indistinct; pygorachis rather narrow, consisting of less than 15 annulations.|