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Plagiura

Trilobita - Ptychopariida - Ptychopariidae

Taxonomy
Plagiura was named by Resser (1935) [Sepkoski's age data: Cm Tojo-u Cm lMid Sepkoski's reference number: 80,379]. Its type is Ptychoparia cercops.

It was assigned to Ptychopariida by Palmer and Halley (1979); to Trilobita by Sepkoski (2002); and to Ptychopariidae by Jell and Adrain (2002).

Synonyms
Synonymy list
YearName and author
1935Plagiura Resser p. 42
1937Plagiurella Resser pp. 22 - 23
1979Plagiura Palmer and Halley p. 112
1980Ruichengella Zhang et al.
2002Plagiura Jell and Adrain p. 426
2002Plagiura Sepkoski

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
subclassLibristoma
orderPtychopariidaSwinnerton 1915
familyPtychopariidaeMatthew 1887
genusPlagiura

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. †Plagiura Resser 1935
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†Plagiura cercops Walcott 1917
†Plagiura cleadas Walcott 1917
†Plagiura extensa Palmer and Halley 1979
†Plagiura minor Palmer and Halley 1979
†Plagiura retracta Palmer and Halley 1979
Invalid names: Plagiurella Resser 1937 [synonym], Ruichengella Zhang et al. 1980 [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: noneg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Comments: BODY SIZE: Data from Harrington et al. (1959).g
Created: 2009-06-09 21:26:05
Modified: 2009-06-09 23:26:05
Source: g = genus, f = family, c = class
References: Hendy 2009, Aberhan et al. 2004

Age range: base of the Dyeran to the top of the Delamaran or 515.30000 to 506.50000 Ma

Collections (47 total)


Time interval Ma Country or state Original ID and collection number
Dyeran515.3 - 511.2Canada (British Columbia) P. sp., Plagiurella sp. (196)
Delamaran511.2 - 506.5Canada (Alberta) Ptychoparia cercops (225265)
Delamaran511.2 - 506.5Canada (British Columbia) P. cercops (225263 225264)
Delamaran511.2 - 506.5USA (Nevada and California) P. sp. (201)
Delamaran511.2 - 506.5USA (California) P. minor (149642 149653)
Delamaran511.2 - 506.5USA (Nevada) P. extensa (149563) P. extensa, P. retracta (149562) P. minor (9435) P. sp. (149605)
Solvan510.2 - 504.5Canada (British Columbia) P. cercops (56703 56704 56717 56720 56721)
Solvan510.2 - 504.5USA (Nevada) P. minor (9423 9432 9433 9447 9449 9450 9451 9456 9457 9461 9462 9469)
Taijangian509.0 - 504.5China (Shanxi) Ruichengella triangularis, Ruichengella ruichengensis (125216)
Taijangian509.0 - 504.5China (Henan) Ruichengella triangularis (129121)
Taijangian509.0 - 504.5China (Shandong) Ruichengella triangularis (124906)
St Davids509.0 - 497.0USA (Nevada) P. extensa (50098 50099 50100 50102 50103 50106 50110 50111 50112 50115 50297 50298 50299 50326 50333 50337)