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Olenellus (Paedeumias)
Taxonomy
Paedeumias was named by Walcott (1910). Its type is Paedeumias transitans.
It was synonymized subjectively with Olenellus by Palmer and Halley (1979), Lieberman (1999); it was reranked as Olenellus (Paedeumias) by Palmer and Repina (1993), Lieberman (1998), Palmer (1998), Sundberg and McCollum (2003).
It was assigned to Mesonacidae by Walcott (1910), Resser (1928); to Olenellida by Sepkoski (2002); to Olenellidae by Hazzard and Crickmay (1933), Riccio (1952), Jell and Adrain (2002); and to Olenellus by Palmer and Repina (1993), Lieberman (1998), Palmer (1998), Sundberg and McCollum (2003).
It was synonymized subjectively with Olenellus by Palmer and Halley (1979), Lieberman (1999); it was reranked as Olenellus (Paedeumias) by Palmer and Repina (1993), Lieberman (1998), Palmer (1998), Sundberg and McCollum (2003).
It was assigned to Mesonacidae by Walcott (1910), Resser (1928); to Olenellida by Sepkoski (2002); to Olenellidae by Hazzard and Crickmay (1933), Riccio (1952), Jell and Adrain (2002); and to Olenellus by Palmer and Repina (1993), Lieberman (1998), Palmer (1998), Sundberg and McCollum (2003).
Subtaxa
Species lacking formal opinion data
Synonymy list
| Year | Name and author |
|---|---|
| 1910 | Paedeumias Walcott p. 302 |
| 1928 | Paedumias Resser p. 4 |
| 1933 | Paedeumias Hazzard and Crickmay p. 74 |
| 1952 | Paedeumias Riccio p. 30 |
| 1993 | Olenellus (Paedeumias) Palmer and Repina p. 22 |
| 1998 | Olenellus (Paedeumias) Lieberman p. 70 |
| 1998 | Olenellus (Paedeumias) Palmer p. 670 |
| 2002 | Paedeumias Jell and Adrain p. 416 |
| 2002 | Paedumias Sepkoski |
| 2003 | Olenellus (Paedeumias) Sundberg and McCollum p. 953 |
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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 (Paedeumias) Walcott 1910
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†Olenellus (Paedeumias) chiefensis Palmer 1998
†Olenellus (Paedeumias) puertoblancoensis Lochman 1952
†Olenellus (Paedeumias) terminatus Palmer 1998
†Paedeumias granulatus Palmer 1964
†Paedeumias transitans Walcott 1910
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Invalid names: Olenellus perkinsi Resser and Howell 1938 [synonym]
Diagnosis
| Reference | Diagnosis | |
|---|---|---|
| A. R. Palmer and L. N. Repina 1993 | Species of Olenellus with posterior margin of cephalon nearly straight or only slightly angled forward distal to position of intergenal spines. Intergenal spine or swelling generally closer to genal spine than to axial fur- row. Sagittal length of preglabellar field characteristically greater than twice sagittal length of anterior border. Posterior tips of palpebral lobes convergent toward glabella, opposite or posterior to posterior part of Li. |
Measurements
No measurements are available
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| Source: g = genus, f = family, o = order, c = class | |||||
| References: Hendy et al. 2009, Whittington et al. 1997, Aberhan et al. 2004, Hendy 2009 | |||||
Age range: Dyeran or 515.30000 to 509.70000 Ma
Collections (44 total)
| Time interval | Ma | Country or state | Original ID and collection number |
|---|---|---|---|
| Caerfai | Canada (Nunavut) | Paedumias sp. (184) | |
| Early/Lower Cambrian | USA (Nevada) | Paedeumias sp. (204011) | |
| Caerfai - St Davids | USA (Nevada) | Paedeumias sp. (9623) | |
| Cambrian | Canada (British Columbia) | Paedumias sp. (186) | |
| Lenian | USA (Nevada) | Olenellus chiefensis (9821) | |
| Lenian | USA (New York) | Paedeumias sp. no. 1, Paedeumias sp. no. 2, Paedeumias sp. no. 3 (225082) Paedumias sp. (189) | |
| Dyeran | USA (Nevada) | Olenellus chiefensis (10560 10569 156353 156372 156373 156374 156375 156376 156377 234284 234285 234286) Paedeumias granulatus (96417) Paedeumias sp. (8665 155976) Paedumias sp. (9622) | |
| Dyeran | USA (Vermont) | Paedeumias transitans, Paedeumias perkinsi, Olenellus brachycephalus (121235) | |
| Dyeran | Canada (Newfoundland) | Olenellus transitans (195761 195905 195906 195922 195923 195926 195930 195935 195936) | |
| Dyeran | Canada (Labrador) | Olenellus transitans (195934) | |
| Dyeran | USA (California) | Olenellus n. sp.1, Olenellus transitans (10613) Olenellus terminatus (10632) Olenellus transitans (10612 10615 10616 10618 10619 10621) Paedeumias sp. (149629 149697) |