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Trilobita - Agnostida - Diplagnostidae

Oedorhachis was named by Resser (1938) [Sepkoski's age data: Cm uMid-u Cm Dres-l Sepkoski's reference number: 16,1017]. It is not extant.

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

Synonymy list
YearName and author
1938Oedorhachis Resser
1997Oedorhachis Whittington et al. p. 364
2002Oedorhachis Sepkoski, Jr.

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EubilateriaAx 1987
phylumArthropodaLatreille 1829
classTrilobitaWalch 1771
orderAgnostidaSalter 1864
superfamilyAgnostoideaM'Coy 1849
familyDiplagnostidaeWhitehouse 1936
genusOedorhachisResser 1938

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.

No diagnoses are available
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesf
Adult width: 1.0 to < 10f
Ontogeny: molting, addition of partsc
Environment: marinec
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, c = class
References: Kiessling 2004, Aberhan et al. 2004, Hendy 2009

Age range: Ayusokkanian or 505.00000 to 498.50000 Ma

Collections (12 total)

Time interval Ma Country or state Original ID and collection number
Menevian513.0 - 501.0Greenland (Peary Land) O. typicalis (49488)
Middle Cambrian513.0 - 501.0Argentina (Mendoza) O. typicalis (9811)
Ayusokkanian505.0 - 498.5Kazakhstan O. globulosus (118234 118236 118238 118239 118241)
Dresbachian501.0 - 485.4Canada (Yukon) O. typicalis (55211 55215)
Guzhangian500.5 - 497.0China (Liaoning) Homagnostus taitzehoensis (126903 129884 129894)