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Crepicephalina

Artiopoda - Ptychopariida - Crepicephalidae

Taxonomy
Crepicephalina was named by Resser and Endo (1935) [Sepkoski's age data: Cm uMid Sepkoski's reference number: 464]. It is not extant.

It was assigned to Crepicephalidae by Luo (2001); and to Ptychopariida by Sepkoski (2002).

Species
C. convexus, C. damia, C. pergranosa, C. ruichengensis
Species lacking formal opinion data
C. quadrata

Synonyms
Synonymy list
YearName and author
1935Mesocrepicephalus Kobayashi
1935Crepicephalina Resser and Endo
2001Crepicephalina Luo
2002Crepicephalina Sepkoski

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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
familyCrepicephalidae
genusCrepicephalinaResser and Endo 1935

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. †Crepicephalina Resser and Endo 1935
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†Crepicephalina convexus Walcott 1911
†Crepicephalina damia Walcott 1905
†Crepicephalina pergranosa Resser and Endo 1937
†Crepicephalina ruichengensis Zhang et al. 1980
Invalid names: Mesocrepicephalus Kobayashi 1935 [synonym]
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
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2009-02-25 09:05:08
Modified: 2009-02-25 11:05:08
Source: g = genus, f = family, c = class
References: Hendy 2009, Aberhan et al. 2004

Age range: base of the Taijangian to the top of the Wangcunian or 506.50000 to 497.00000 Ma

Collections (10 total)


Time interval Ma Country or state Original ID and collection number
Taijangian506.5 - 504.5China (Henan) C. pergranosa (129021 129150) C. sp., C. pergranosa (129134)
Taijangian506.5 - 504.5China (Shandong) C. damia (127362)
Taijangian506.5 - 504.5China (Shaanxi) C. convexus (124911)
Taijangian506.5 - 504.5China (Shanxi) C. ruichengensis (125302)
Taijangian506.5 - 504.5China (Hunan) C. pergranosa (49272) C. quadrata (49268) C. sp. (49157)
Wangcunian504.5 - 497.0China (Shandong) Crepicephalus damia (232858)