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Gerastos arcus

Trilobita - Proetida - Proetidae

Taxonomy
Gerastos arcus was named by Van Viersen and Prescher (2010) [Paratypes Two cephala (IRSNB a12782, a12783), one mostly exfoliated complete specimen (IRSNB a12784).]. Its type specimen is IRSNB a12781, a cephalothorax, and it is a 3D body fossil. Its type locality is Pl. Couvin 11a, Petigny, which is in an Eifelian marine mixed carbonate-siliciclastic in the Jemelle Formation of Belgium.

Sister species lacking formal opinion data

Synonymy list
YearName and author
2010Gerastos arcus Van Viersen and Prescher pp. 16-17 figs. Fig. 3; Pl. 2, Figs 11, 14-19

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RankNameAuthor
kingdomAnimalia()
Bilateria
EubilateriaAx 1987
Protostomia
Ecdysozoa
Panarthropoda
phylumArthropodaLatreille 1829
subphylumArtiopoda(Hou and Bergstrom)
RankNameAuthor
classTrilobitaWalch 1771
orderProetidaFortey and Owens 1975
superfamilyProetoideaHawle and Corda 1847
familyProetidaeSalter 1864
subfamilyProetinaeSalter 1864
genusGerastos(Goldfuss 1843)
speciesarcus

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.

Gerastos arcus Van Viersen and Prescher 2010
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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 length: 10 to < 100f
Adult width: 10 to < 100f
Ontogeny: molting, addition of partsc
Environment: marinec
Locomotion: fast-movingc
Life habit: low-level epifaunalc
Diet: deposit feedero
Vision: well-developedf
Created: 2009-06-11 18:30:23
Modified: 2009-12-19 04:35:55
Source: f = family, o = order, c = class
References: Hendy 2009, Fortey and Owens 1999, Aberhan et al. 2004

Age range: Eifelian or 393.30000 to 387.70000 Ma

Collections: one only


Time interval Ma Country or state Original ID and collection number
Eifelian393.3 - 387.7Belgium (Namur) Gerastos arcus (type locality: 229335)