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Semisphaerocephalus

Artiopoda - Ptychopariida - Ptychopariidae

Taxonomy
Semisphaerocephalus was named by Ivshin (1953). It is not extant.

It was assigned to Ptychopariidae by Jell and Adrain (2002).

Species
S. latus

Synonymy list
YearName and author
1953Semisphaerocephalus Ivshin
2002Semisphaerocephalus Jell and Adrain p. 444

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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
familyPtychopariidaeMatthew 1887
genusSemisphaerocephalusIvshin 1953

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. †Semisphaerocephalus Ivshin 1953
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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
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2009-06-11 20:00:46
Modified: 2009-12-19 06:30:51
Source: f = family, c = class
References: Aberhan et al. 2004, Hendy 2009

Age range: Middle Cambrian or 506.50000 to 497.00000 Ma

Collections (4 total)


Time interval Ma Country or state Original ID and collection number
Middle Cambrian506.5 - 497.0USA (Alaska) S. latus (64762 64763 64764 64765)