Illaenus

Illaenus Temporal range: Middle Ordovician PreꞒ Ꞓ O S D C P T J K Pg N
Illaenus tauricornis from Russia. On display at the Museo Civico di Storia Naturale di Milano
Scientific classification
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Trilobita
Order:	†Corynexochida
Family:	†Illaenidae
Genus:	†Illaenus 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 57 millimetres (2.2 in). 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.^[1][2]

Selected species[]

This genus includes about 50 species:^[3]

• † Raymond 1925
• † Ross, Jr. & Barnes 1967
• † Billings 1859
• † Whittington 1963
• † Billings 1865
• † Billings 1865
• †Illaenus crassicauda Wahlenberg 1826
• † Billings 1865
• † Whittington 1965
• † Whittington 1954
• † Raymond 1925
• † Fortey 1980
• † Krylov 2016
• † Whittington 1963
• †Illaenus tauricornis Kutorga 1848
• † Billings 1865
• † Hintze 1952
• † Loch & Ethington 2017

See also[]

References[]

• Yvonne Howells, "Ordovician Trilobites of St. Petersburg Region"

External links[]

• Russian Trilobites
• Saint Petesburg Paleontological Laboratory

Wikimedia Commons has media related to Illaenus.

This Corynexochida-related article is a stub. You can help Wikipedia by .

• v
• t