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Ehmaniella quadrans

Artiopoda - Ptychopariida - Alokistocaridae

Taxonomy
Crepicephalus (Loganellus) quadrans was named by Hall and Whitfield (1877). It is the type species of Ehmaniella.

It was recombined as Ehmaniella quadrans by Palmer (1954).

Sister species lacking formal opinion data

Synonymy list
YearName and author
1877Crepicephalus (Loganellus) quadrans Hall and Whitfield p. 238 figs. pl. 2, figs. 11-13
1954Ehmaniella quadrans Palmer p. 76 figs. Plate 17, figures 1-5

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaGravenhorst 1843
RankNameAuthor
classArtiopodaHou and Bergstrom
classTrilobitaWalch 1771
subclassLibristoma
orderPtychopariidaSwinnerton 1915
familyAlokistocaridaeResser 1939
genusEhmaniellaResser 1937
speciesquadrans(Hall and Whitfield 1877)

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.

Ehmaniella quadrans Hall and Whitfield 1877
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Diagnosis
No diagnoses are available
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-movingg
Life habit: epifaunalg
Diet: detritivoreg
Vision: well-developedf
Created: 2008-10-19 08:19:00
Modified: 2009-10-08 00:46:56
Source: g = genus, f = family, c = class
References: Caron and Jackson 2008, Aberhan et al. 2004, Hendy 2009

Age range: Delamaran or 509.70000 to 505.30000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Delamaran509.7 - 505.3USA (Utah) Ehmaniella quadrans (269)