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Steedenia

Trilobita - Proetida - Phillipsiidae

Taxonomy
Steedenia was named by Hahn et al. (2003).

It was assigned to Cystispininae by Hahn et al. (2003).

Species lacking formal opinion data

Synonymy list
YearName and author
2003Steedenia Hahn et al. p. 46

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
Life
RankNameAuthor
subphylumArtiopoda(Hou and Bergstrom)
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
superfamilyProetoideaHawle and Corda 1847
familyPhillipsiidaeOehlert 1886
subfamilyCystispininaeHahn and Hahn 1982
genusSteedenia

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. †Steedenia Hahn et al. 2003
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: deposit feedero
Vision: well-developedf
Created: 2009-12-19 02:34:58
Modified: 2009-12-19 04:34:58
Source: f = family, o = order, c = class
References: Fortey and Owens 1999, Aberhan et al. 2004, Whittington et al. 1997

Age range: Chadian or 345.30000 to 345.00000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Chadian345.3 - 345.0Germany S. phorkys, S. typhon (37185)