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Helmetiida
Taxonomy
Subtaxa
Synonymy list
| Year | Name and author |
|---|---|
| 1960 | Helmetiida Novozhilov |
| 2025 | Helmetiida Losso et al. p. 4 |
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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.
Or. †Helmetiida Novozhilov 1960
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Invalid names: Tegopeltidae Simonetta and Delle Cave 1975 [empty]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| S. R. Losso et al. 2025 | Concilitergans with raised eye bulges on dorsal exoskeleton accommodating ventral stalked eyes. Large anterior sclerite located in central notch of anterior margin of cephalon with notch occupying less than a third of the anterior margin in most taxa (absent only in Tegopelte). Postantennal appendages are homonomous and biramous, including three pairs in the cephalon and one associated with each tergite in the thorax. Endopodites are gracile with slender and rect-
angular distal podomeres. Exopodites bear long, thick lamellae on a single lobe. |