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Elrathiella decora

Trilobita - Ptychopariida - Alokistocaridae

Taxonomy
Elrathiella decora was named by Resser (1945).

Synonymy list
YearName and author
1945Elrathiella decora Resser pp. 209 - 210 figs. Plate 24, figure 1
1994Elrathiella decora Sundberg pp. 61 - 63 figs. Figure 38

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
EcdysozoaAguinaldo et al. 1997
Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
classTrilobitaWalch 1771
subclassLibristoma
orderPtychopariidaSwinnerton 1915
familyAlokistocaridaeResser 1939
subfamilyEhmaniellinae
genusElrathiellaPoulson 1927
speciesdecoraResser 1945

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.

Elrathiella decora Resser 1945
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Diagnosis
ReferenceDiagnosis
F. A. Sundberg 1994Elrathiella with cra- nidium with elongated glabella (70-80% cranidial length), strongly tapered, strongly rounded frontal lobe; anterior border convex, wide (65-75% frontal area length), evenly curved, moderately to strongly tapered; shallow anterior border furrow; moder- ately wide fixigenae (50-60% glabellar width); coarse granular ornamentation. Pygidium subelliptical to subrectangular, smooth; anterior pleural bands moderately to weakly convex.
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
Ribbing: noneg
Spines: noneg
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2009-02-26 11:53:08
Modified: 2009-02-26 13:53:08
Source: g = genus, f = family, c = class
References: Aberhan et al. 2004, Hendy 2009
Collections
No collection or age range data are available