Illaenus
Illaenus sarsi. This Illaenus is one of the 50-odd members of the genus, and known for the high profile of the cephalon which is thought to have aided the trilobite in ploughing through the substrate in search of a meal.
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
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Corynexochida
Family: Illaenidae
Genus: Illaenus
Dalman, 1827
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
Scientific classification
Kingdom: Animalia
Phylum: Arthropoda
Class: Trilobita
Order: Corynexochida
Family: Illaenidae
Genus: Illaenus
Dalman, 1827