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Psilocephalina

Trilobita - Asaphida - Asaphidae

Taxonomy
Psilocephalina was named by Hsu (1948) [Sepkoski's age data: O Trem].

It was assigned to Asaphida by Sepkoski (2002); and to Asaphidae by Jell and Adrain (2002).

Species lacking formal opinion data

View classification of included taxa

Synonymy list
YearName and author
1948Psilocephalina Hsu
2002Psilocephalina Jell and Adrain p. 435
2002Psilocephalina Sepkoski, Jr.

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumMandibulata
classTrilobitaWalch 1771
orderAsaphidaSalter 1864
superfamilyAsaphoideaSalter 1864
familyAsaphidaeBurmeister 1843
genusPsilocephalinaHsu 1948

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.

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-movingo
Life habit: low-level epifaunalo
Diet: deposit feedero
Vision: well-developedf
Created: 2009-06-11 14:38:06
Modified: 2009-12-14 00:45:08
Source: f = family, o = order, c = class
References: Aberhan et al. 2004, Hendy 2009, Hendy et al. 2009

Age range: base of the Warendian to the top of the Caradoc or 485.40000 to 449.50000 Ma

Collections (44 total)


Time interval Ma Country or state Original ID and collection number
Warendian485.4 - 478.6Australia (Northern Territory) P. lubrica (77769 77770 79010) P. sp. (77522 79322)
Tremadoc485.4 - 477.7China (YunNan) P. sp. (7736)
Tremadoc485.4 - 477.7China (Guizhou) P. sp. (5275 5280 5282)
Tremadoc485.4 - 477.7China (Hubei) P. sp. (4727 4728 4730 7728)
Tremadoc485.4 - 477.7China (HeBei) P. sp. (7983)
Tremadoc485.4 - 477.7China (AnHui) P. sp. (7831)
Tremadoc485.4 - 477.7Iran P. lubrica (116498 116499)
Tremadoc485.4 - 477.7China (Hunan and Hubei) P. sp. (7719 7720)
Tremadoc485.4 - 477.7China (Sichuan) P. sp. (5418 7651 7664 7673)
Arenig478.6 - 466.0China (Guizhou) P. sp. (5272)
Arenig478.6 - 466.0China (Sichuan) P. sp. (5416 5419 7268 7649 7650 7660 7663 7670 7671)
Arenig478.6 - 466.0China (YunNan) P. sp. (7732 7735)
Arenig478.6 - 466.0China (Hubei) P. sp. (4724)
Arenig478.6 - 466.0China (Yunnan) P. sp. (5430 5431 7263 7265 7266)
Arenig478.6 - 466.0China (SiChuan) P. sp. (7949)
Arenig478.6 - 466.0China (AnHui) P. sp. (7845)
Caradoc460.9 - 449.5China (QingHai) P. sp. (23601)