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Olenoides
Taxonomy
Olenoides was named by Meek (1877) [Sepkoski's age data: Cm Dres-l Sepkoski's reference number: 1066
Sepkoski's age data: Cm Tojo Cm Dres-l Sepkoski's reference number: 80]. It is not extant.
It was assigned to Dorypigidae by Palmer (1954); to Corynexochida by Sepkoski (2002); and to Dorypygidae by Benton (1993), Sundberg (1994), Jell and Adrain (2002) and Pour and Popov (2009).
It was assigned to Dorypigidae by Palmer (1954); to Corynexochida by Sepkoski (2002); and to Dorypygidae by Benton (1993), Sundberg (1994), Jell and Adrain (2002) and Pour and Popov (2009).
Species
Neolenus inflatus, Neolenus intermedius, Neolenus superbus, O. abnormis, O. brighamensis, O. buttsi, O. comptus, O. curticei, O. evansi, O. expansus, O. hubeiensis, O. nevadensis, O. obrutchevi, O. octaspinus, O. paraptus, O. pennsylvanicus, O. serratus, O. steptoensis, O. tranans, O. wahsatchensis (syn. Dikelocephalus gothicus)
Species lacking formal opinion data
Synonyms
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Synonymy list
| Year | Name and author |
|---|---|
| 1877 | Olenoides Meek p. 174 |
| 1899 | Neolenus Matthew |
| 1908 | Neolenus Walcott p. 26 |
| 1954 | Olenoides Palmer p. 62 |
| 1993 | Olenoidestranans Benton p. 283 |
| 1994 | Olenoides Sundberg p. 31 |
| 2002 | Neolenus Jell and Adrain p. 410 |
| 2002 | Olenoides Jell and Adrain p. 470 |
| 2002 | Olenoides Sepkoski |
| 2009 | Olenoides Pour and Popov |
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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.
G. †Olenoides Meek 1877
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†Olenoides abnormis Yuan et al. 1997
†Olenoides brighamensis Resser 1939
†Olenoides buttsi Rasetti 1965
†Olenoides comptus Repina 1975
†Olenoides curticei Walcott 1889
†Olenoides evansi Resser 1939
†Olenoides expansus Walcott 1884
†Olenoides hubeiensis Sun 1984
†Olenoides nevadensis Meek 1870
†Olenoides obrutchevi Lermonntova 1926
†Olenoides octaspinus Yuan et al. 1997
†Olenoides paraptus Zhao et al. 1994
†Olenoides pennsylvanicus Rasetti 1965
†Olenoides serratus Rominger 1887
†Olenoides steptoensis Fritz 1968
†Olenoides tranans Öpik 1967
†Olenoides wahsatchensis Hall and Whitfield 1877
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Invalid names: Dikelocephalus gothicus Hall and Whitfield 1877 [synonym]
Invalid names: Neolenus Matthew 1899 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Palmer 1954 | Cephalon subsemicircular in outline; posterior margin nearly straight; genal spines originating from posterolateral corners. Cranidium subtrapezoidal in outline. Glabella parallel sided or slightly expanded forward, prominently elevated above cheeks, reaching to border, smooth or faintly furrowed, well defined by dorsal furrow. Occipital furrow distinct. Occipital ring usually bears median spine. Fixed cheeks narrow, less than one half width of glabella. Ocular ridges distinct, strongly backswept from anterolateral margin of glabella. Distinct pits are present in dorsal furrow at junction with ocular ridge. Palpebral lobes small, situated opposite middle third of glabella. Posterior limbs long, wide; marginal furrow distinct.
Thorax consists of about seven segments. Axial portion of segments often with median node or spine. Pleural portions with distinct, posterolaterally directed furrow originating near inner anterior corner of lobe. Marginal spines sharp. Axial lobe gently to moderately tapered posteriorly. Pygidium subsemicircular in outline. Axial lobe well defined by dorsal furrow, tapered posteriorly, reaching to or nearly to the inner margin of the border. Pleural lobes with distinct interpleural grooves and diagonal pleural furrows. Pleural furrows usually deepest. Margin with four or more pairs of posteriorly or posterolaterally directed, nearly horizontal spines. | |
| F. A. Sundberg 1994 | Dorypygidae with cranidium with subquadrate to slightly expanded glabella wich shallow lateral glabellar furrows; fixi- genae convex, slightly downsloping. Pygidium with well-defined axis general ly extending to border, 5- 7 ring furrows; pleural fields crossed by 5 - 6 gen- erally deep pleural and interpleural furrows, exsag- mal width of anterior pleural bands increases laterally; width of posterior pleural bands uniform; border poorly defined, generally 4 or more pairs of spines of equal length, evenly spaced along margin. |