Basic info Taxonomic history Classification Included Taxa
Morphology Ecology and taphonomy External Literature Search Age range and collections

Xestagnostus

Agnostida - Diplagnostidae

Taxonomy
Xestagnostus was named by Opik (1967) [Sepkoski's age data: Cm Dres-l Sepkoski's reference number: 16]. It is not extant. Its type is Xestagnostus legirupa.

It was assigned to Diplagnostidae by Whittington et al. (1997); and to Agnostida by Sepkoski (2002).

Species
X. legirupa (type species), X. transversus

Synonymy list
YearName and author
1967Xestagnostus Opik
1997Xestagnostus Whittington et al. p. 371
2002Xestagnostus Sepkoski

Is something missing? Join the Paleobiology Database and enter the data

RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
orderAgnostidaSalter 1864
suborderAgnostinaSalter 1864
superfamilyCondylopygoideaRaymond 1913
familyDiplagnostidaeWhitehouse 1936
genusXestagnostusOpik 1967

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. †Xestagnostus Opik 1967
show all | hide all
Xestagnostus legirupa Opik 1967
Xestagnostus transversus Lu and Lin 1989
Diagnosis
No diagnoses are available
Measurements
No measurements are available
Entire body: yesf
Adult width: 1.0 to < 10f
Locomotion: slow-movingo
Life habit: epifaunalo
Diet: detritivoreo
Vision: blindf
Created: 2009-06-11 19:48:09
Modified: 2009-12-13 04:20:19
Source: f = family, o = order
References: Kiessling 2004, Hendy 2009

Age range: Paibian or 501.00000 to 498.50000 Ma

Collections (3 total)


Time interval Ma Country or state Original ID and collection number
Paibian501.0 - 498.5China (Zhejiang) X. transversus (125677)
Sakian501.0 - 485.4Kazakhstan X. legirupa (118254 118258)