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Paedeumias

Trilobita - Redlichiida - Olenellidae

Taxonomy
Paedeumias was named by Walcott (1910).

It was reranked as Olenellus (Paedeumias) by Palmer and Repina (1993) and Palmer (1998); it was synonymized subjectively with Olenellus by Lieberman (1999); it was misspelled as Paedumias by Sepkoski (2002) and Jell and Adrain (2003).

It was assigned to Mesonacidae by Walcott (1910) and Resser (1928); to Olenellus by Palmer and Repina (1993) and Palmer (1998); to Olenellida by Sepkoski (2002); and to Olenellidae by Riccio (1952) and Jell and Adrain (2003).

Synonymy list
YearName and author
1910Paedeumias Walcott p. 302
1928Paedumias Resser p. 4
1952Paedeumias Riccio p. 30
1993Olenellus (Paedeumias) Palmer and Repina p. 22
1998Olenellus (Paedeumias) Palmer p. 670
2002Paedumias Sepkoski, Jr.
2003Paedeumias Jell and Adrain p. 416

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
orderRedlichiidaRichter 1932
suborderOlenellina
superfamilyOlenelloidea
familyOlenellidae
genusPaedeumias

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.

Diagnosis
ReferenceDiagnosis
A. R. Palmer and L. N. Repina 1993Species 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.