Illaenus
{{Short description|Genus of trilobites}}
{{Automatic taxobox
| fossil_range = {{fossil range|Middle Ordovician}}
| image = Illaenidae - Illaenus tauricornis.JPG
| image_caption = Illaenus tauricornis from Russia. On display at the Museo Civico di Storia Naturale di Milano
| taxon = Illaenus
| authority = Dalman, 1827
}}
Illaenus is a genus of trilobites from Russia and Morocco, from the middle Ordovician.
Species included in this genus can reach a length of about {{convert|57|mm}}. They are without glabella and without articulation of the tail. The cephalon has a high profile and recurved genal spines. Eyes are distant from the axis of the head, situated nearer to the edge.[https://archive.org/stream/classedannotated00vogdrich/classedannotated00vogdrich_djvu.txt Archive.org][http://www.fossilmuseum.net/Fossil_Galleries/Russian_Trilobites/IllaenusTaurkornis2/IllaenusTaurkornis2.htm Fossil Museum]
Selected species
This genus includes about 50 species:{{fossilworks |id=19582 |title=Illaenus |date=2 December 2015}}
- {{extinct}}Illaenus alveatus Raymond 1925
- {{extinct}}Illaenus auriculatus Ross Jr. & Barnes 1967
- {{extinct}}Illaenus bayfieldi Billings 1859
- {{extinct}}Illaenus bucculentus Whittington 1963
- {{extinct}}Illaenus consimilis Billings 1865
- {{extinct}}Illaenus consobrinus Billings 1865
- {{extinct}}Illaenus crassicauda Wahlenberg 1826
- {{extinct}}Illaenus fraternus Billings 1865
- {{extinct}}Illaenus gelasinus Whittington 1965
- {{extinct}}Illaenus lacertus Whittington 1954
- {{extinct}}Illaenus marginalis Raymond 1925
- {{extinct}}Illaenus oscitatus Fortey 1980
- {{extinct}}Illaenus slancyensis Krylov 2016
- {{extinct}}Illaenus spiculatus Whittington 1963
- {{extinct}}Illaenus tauricornis Kutorga 1848
- {{extinct}}Illaenus tumidifrons Billings 1865
- {{extinct}}Illaenus utahensis Hintze 1952
- {{extinct}}Illaenus welchi Loch & Ethington 2017
See also
References
{{Reflist}}
- Yvonne Howells, "Ordovician Trilobites of St. Petersburg Region"
External links
{{Commons category}}
- [https://web.archive.org/web/20110701155607/http://www.indiana9fossils.com/Trilobites/Russian-Trilobites.htm Russian Trilobites]
- [http://www.paleoart.com/catalog/382/Illaenus Saint Petersburg Paleontological Laboratory] {{Webarchive|url=https://web.archive.org/web/20120324234932/http://www.paleoart.com/catalog/382/Illaenus |date=2012-03-24 }}
{{Taxonbar|from=Q12060685}}
Category:Ordovician trilobites
Category:Paleozoic life of Ontario
Category:Paleozoic life of Newfoundland and Labrador
Category:Paleozoic life of the Northwest Territories
Category:Paleozoic life of Nunavut
Category:Paleozoic life of Quebec
Category:Paleozoic life of Yukon
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