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Paedeumias transitans

Trilobita - Redlichiida - Olenellidae

Taxonomy
Paedeumias transitans was named by Walcott (1910) [Walcott 1910 pl. 32, figs. 10, 12, 13, pl. 34, figs. 2–7 and possibly pl. 32, figs. 1–9, 11, pl. 33, figs. 2–5.= Olenellus roddyi (Lieberman 1999). = Olenellus brachycephalus (Emmons); Shaw 1955:791, pl. 75, figs. 1–3. = Olenellus thompsoni (Hall); Whitfield 1884:151, pl. 15, figs. 1–4.]. Its type specimen is USNM 56808b and is a 3D body fossil. It is the type species of Paedeumias.

It was recombined as Olenellus (Paedeumias) transitans by Palmer and Repina (1993) and Lieberman (1998); it was recombined as Olenellus transitans by Lieberman (1999).

Synonyms
Synonymy list
YearName and author
1910Paedeumias transitans Walcott p. 305 figs. pl. 34, fig. 1; not pl. 32, figs. 10, 12, 13, pl. 34, figs. 2–7
1938Paedeumias perkinsi Resser and Howell p. 226 figs. pl. 8, fig. 1
1938Paedeumias transitans Resser and Howell p. 226
1993Olenellus (Paedeumias) transitans Palmer and Repina p. 22 fig. 3.3
1998Olenellus (Paedeumias) transitans Lieberman p. 70 figs. Figures 3.2, 3.3
1999Olenellus transitans Lieberman p. 15
2002Paedeumias transitans Jell and Adrain p. 416

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
classTrilobitaWalch 1771
orderRedlichiidaRichter 1932
suborderOlenellina
superfamilyOlenelloidea
familyOlenellidae
subfamilyOlenellinae
genusPaedeumiasHall 1861
speciestransitans

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.

Paedeumias transitans Walcott 1910
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Invalid names: Olenellus perkinsi Resser and Howell 1938 [synonym]
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesg
Adult length: 10 to < 100g
Adult width: 10 to < 100g
Spines: majorg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingo
Life habit: low-level epifaunalo
Diet: deposit feedero
Vision: well-developedf
Created: 2009-02-25 08:45:18
Modified: 2009-02-25 12:04:51
Source: g = genus, f = family, o = order, c = class
References: Hendy 2009, Whittington et al. 1997, Aberhan et al. 2004, Hendy et al. 2009

Age range: Dyeran or 515.30000 to 511.20000 Ma

Collections (18 total)


Time interval Ma Country or state Original ID and collection number
Dyeran515.3 - 511.2USA (Vermont) Paedeumias transitans, Paedeumias perkinsi, Olenellus brachycephalus (121235)
Dyeran515.3 - 511.2Canada (Labrador) Olenellus transitans (195934)
Dyeran515.3 - 511.2USA (California) Olenellus transitans (10612 10613 10615 10616 10618 10619 10621)
Dyeran515.3 - 511.2Canada (Newfoundland) Olenellus transitans (195761 195905 195906 195922 195923 195926 195930 195935 195936)