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Olenellus (Olenellus)
Taxonomy
Olenellus (Olenellus) was named by Hall (1861). It is not extant. Its type is Olenus thompsoni.
It was assigned to Olenellus by Hall (1861), Palmer and Repina (1993), Lieberman (1998) and Palmer (1998).
It was assigned to Olenellus by Hall (1861), Palmer and Repina (1993), Lieberman (1998) and Palmer (1998).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1861 | Olenellus (Olenellus) Hall |
| 1993 | Olenellus (Olenellus) Palmer and Repina p. 22 |
| 1998 | Olenellus (Olenellus) Lieberman p. 68 |
| 1998 | Olenellus (Olenellus) Palmer p. 667 |
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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.
Subg. †Olenellus (Olenellus) Hall 1861
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†Olenellus (Olenellus) fowleri Palmer 1998
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Palmer and L. N. Repina 1993 | Species of Olenellus with genal spines at pos-
terolateral cephalic corners or slightly advanced to posi- tion opposite Ll. Intergenal spines, if present, small, close to genal spines, and directed slightly posterolater-ally. Preglabellar field absent or very short, sagittal length usu- ally less than twice sagittal length of anterior border. Ocu- lar lobes curved; posterior tips convergent toward glabella and situated opposite or posterior to posterior part of Ll. S2 isolated from axial furrow, usually present as distinct transverse slits. |