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Pseudomera barrandei

Trilobita - Phacopida - Pliomeridae

Taxonomy
Amphion barrandei was named by Billings (1865). Its type specimen is GSC 681b, a cephalon/head (cranidium), and it is a mold.

It was recombined as Pliomerops barrandei by Raymond (1910), Raymond (1925), Phleger (1933); it was recombined as Pseudomera barrandei by Holliday (1942), Ross (1970).

Synonymy list
YearName and author
1865Amphion barrandei Billings p. 288 figs. 277a-277b
1910Pliomerops barrandei Raymond p. 76 fig. 7
1925Pliomerops barrandei Raymond p. 153
1933Pliomerops barrandei Phleger, Jr. p. 16 figs. Plate II, Figs., 10, 11
1942Pseudomera barrandei Holliday p. 474 figs. Plate 73, figures 5-10
1970Pseudomera barrandei Ross p. 81 figs. Plate 17, figures 13, 17

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—EcdysozoaAguinaldo et al. 1997
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCheirurinaHarrington and Leanza 1957
familyPliomeridaeRaymond 1913
genusPseudomera
speciesbarrandei(Billings 1865)

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.

†Pseudomera barrandei Billings 1865
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Invalid names: Pliomerops nevadensis Walcott 1884 [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: minorg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2009-06-10 07:59:54
Modified: 2009-06-10 09:59:54
Source: g = genus, f = family, c = class
References: Aberhan et al. 2004, Hendy 2009

Age range: base of the Rangerian to the top of the Llanvirn or 471.30000 to 458.20000 Ma

Collections (45 total)


Time interval Ma Country or state Original ID and collection number
Rangerian471.3 - 470.3USA (Nevada) Pseudomera barrandei (104448 104461 119435)
Dapingian471.3 - 469.4USA (Utah) Pseudomera barrandei (104200 104218)
Chazyan471.3 - 457.3Canada (Newfoundland and Labrador) Pseudomera barrandei (104800 104805 104807 104861)
Whiterockian471.3 - 457.3Canada (Northwest Territories) Pseudomera barrandei (102233 102259 102262 102263 102264 102267)
Whiterockian471.3 - 457.3Canada (Newfoundland and Labrador) Pseudomera barrandei (104863 104867 104874 104876 104877 104878 104879 104880 104881 104883 104884 104885 104886 104887 104888)
Whiterockian471.3 - 457.3Canada (Newfoundland) Pseudomera barrandei (196399 196401)
Whiterockian471.3 - 457.3USA (Nevada) Pseudomera barrandei (104445 104446)
Whiterockian471.3 - 457.3USA (Oklahoma) Pseudomera barrandei (105616 105621 105640 105641 105651 105653)
Whiterockian471.3 - 457.3USA (California) Pseudomera barrandei (119483 119487 208573)
Darriwilian469.4 - 458.2Canada (Newfoundland) Pliomerops barrandei (192823)
Llanvirn468.0 - 458.2Canada (Newfoundland and Labrador) Pseudomera barrandei (78097)