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Volocephalina contracta

Trilobita - Ptychopariida - Ptychopariidae

Taxonomy
Volocephalina contracta was named by Palmer and Halley (1979). It is a 3D body fossil. Its type locality is Pyramid Peak (USGS 4158-CO), which is in a Delamaran shallow subtidal lime mudstone/mudstone in the Carrara Formation of California.

Synonymy list
YearName and author
1979Volocephalina contracta Palmer and Halley p. 117 figs. Plate 14, figures 13-16, 20

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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
genusVolocephalina
speciescontracta

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.

Volocephalina contracta Palmer and Halley 1979
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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
Created: 2009-06-09 21:32:29
Modified: 2009-06-09 23:32:29
Source: g = genus, f = family, c = class
References: Hendy 2009, Aberhan et al. 2004

Age range: Delamaran or 511.20000 to 506.50000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Delamaran511.2 - 506.5USA (California) Volocephalina contracta (149641 149643 type locality: 149644)