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Digonus roemeri

Trilobita - Phacopida - Homalonotidae

Taxonomy
Homalonotus roemeri was named by de Koninck (1876).

It was recombined as Digonus roemeri by Smeenk (1983).

Sister species lacking formal opinion data
Burmeisteria accraensis, D. intermedius

Synonymy list
YearName and author
1876Homalonotus roemeri de Koninck
1983Digonus roemeri Smeenk figs. pl. 18 f. 6-10

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RankNameAuthor
kingdomAnimalia()
—Bilateria
—EubilateriaAx 1987
—Protostomia
—Ecdysozoa
—Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
classTrilobitaWalch 1771
orderPhacopidaSalter 1864
suborderCalymeninaSwinnerton 1915
familyHomalonotidaeChapman 1890
subfamilyHomalonotinae(Chapman 1890)
genusDigonusGuerich 1909
speciesroemeri(de Koninck 1876)

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.

†Digonus roemeri de Koninck 1876
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Diagnosis
No diagnoses are available
Measurements
No measurements are available
Composition: low Mg calcitec
Composition 2: chitinc
Entire body: yesf
Adult width: 10 to < 100f
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: carnivorec
Vision: well-developedf
Created: 2009-06-11 19:54:32
Modified: 2009-12-16 01:06:20
Source: f = family, c = class
References: Hendy 2009, Aberhan et al. 2004

Age range: base of the Gedinnine to the top of the Pragian or 416.00000 to 407.60000 Ma

Collections (10 total)


Time interval Ma Country or state Original ID and collection number
Pridoli - Helderbergian423.0 - 393.3Algeria Homalonotus roemeri (27210)
Lochkovian419.2 - 410.8Algeria Homalonotus roemeri (27171 27183 27473)
Lochkovian419.2 - 410.8Ukraine Homalonotus roemeri (23362)
Lochkovian419.2 - 410.8Morocco Homalonotus roemeri (27386 27467)
Gedinnine416.0 - 412.3Spain (León) Digonus roemeri (234796)
Gedinnine416.0 - 412.3Spain Digonus roemeri (234795)
Pragian410.8 - 407.6Algeria Homalonotus roemeri (27172)