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Erratencrinurus vigilans

Trilobita - Phacopida - Encrinuridae

Taxonomy
Ceraurus vigilans was named by Hall (1847).

It was recombined as Encrinurus vigilans by Okulitch (1935); it was recombined as Encrinuroides vigilans by Titus (1982); it was recombined as Erratencrinurus (Erratencrinurus) vigilans by Lespérance and Desbiens (1995); it was recombined as Erratencrinurus vigilans by Moss and Westrop (2014).

Sister species lacking formal opinion data
E. ejinensis

Synonyms
Synonymy list
YearName and author
1847Ceraurus vigilans Hall pp. 245 - 246 figs. PI., 65. Figs. 2a-h
1880Encrinurus trentonensis Walcott p. 68
1930Encrinurus trentonensis Bradley pp. 272 - 273 figs. pl. 29 f. 34-35
1935Encrinurus vigilans Okulitch p. 101
1982Encrinuroides vigilans Titus
1995Erratencrinurus (Erratencrinurus) vigilans Lespérance and Desbiens
2014Erratencrinurus vigilans Moss and Westrop pp. 1113, table 1

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCheirurinaHarrington and Leanza 1957
familyEncrinuridaeAngelin 1854
subfamilyEncrinurinaeAngelin 1854
genusErratencrinurusKrueger 1971
speciesvigilans()

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.

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Invalid names: Erratencrinurus trentonensis Walcott 1880 [synonym]
Diagnosis
ReferenceDiagnosis
J. H. Bradley 1930 (Encrinurus trentonensis)The general outline is triangular, the length equaling the width. The axial lobe is narrow, rounded, and tapers posteriorly; one specimen shows twenty axial rings, with median nodes on the third, sixth, tenth, fourteenth, and eighteenth segment. The pleurae curve sharply to the lateral margins and are marked by nine ribs oli each side. An average specimen is 4 mm. long.
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesf
Adult length: 10 to < 100f
Adult width: 10 to < 100f
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Created: 2009-06-11 14:51:52
Modified: 2009-06-11 16:52:10
Source: f = family, c = class
References: Hendy 2009, Aberhan et al. 2004

Age range: base of the Turinian to the top of the Edenian or 457.30000 to 450.20000 Ma

Collections (21 total)


Time interval Ma Country or state Original ID and collection number
Turinian457.3 - 453.8Canada (Quebec) Encrinurus vigilans (174157)
Mohawkian457.3 - 451.0USA (New York) Encrinuroides vigilans (104598)
Rocklandian457.3 - 449.6USA (Iowa/Wisconsin) Encrinuroides vigilans (23116)
Shermanian457.3 - 449.6USA (Illinois) Encrinurus trentonensis (154952)
Shermanian457.3 - 449.6USA (Illinois, Iowa) Encrinuroides vigilans (23799 23800 23801 23802 23803 23804 23805 23806)
Shermanian457.3 - 449.6USA (Minnesota) Encrinuroides vigilans (23278 23279)
Chatfieldian453.8 - 451.0Canada (Ontario) Encrinurus trentonensis (26263 26267 26270)
Edenian451.0 - 450.2USA (Minnesota) Encrinuroides vigilans (23280)
Edenian451.0 - 450.2USA (Illinois, Iowa) Encrinuroides vigilans (23807)
Edenian - Maysvillian451.0 - 449.6USA (Minnesota) Encrinuroides vigilans (23282)
Edenian - Maysvillian451.0 - 449.6USA (Illinois, Iowa) Encrinuroides vigilans (23810)