Illaenus atavus


Kingdom
Animalia
Phylum
Arthropoda
Class
Trilobita
Order
Corynexochida
Suborder
Illaenina
Superfamily
Illaenoidea
Family
Illaenidae
Binomial Name
Illaenus atavus
Formation
Vilpovitsy quarry, Asery stage
Locale
St. Petersburg region, Russia
Age
Middle Ordovician
Notes
This has a somewhat larger pygidium than other members of the genus. The high, smooth, swollen head with only a slight division into a glabella is typical of this genus.

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Illaenus atavus


Picture of Illaenus atavus
Picture of Illaenus atavus

Illaenus atavus right side


Picture of Illaenus atavus right side
Picture of Illaenus atavus right side

Illaenus atavus front


Picture of Illaenus atavus front
Picture of Illaenus atavus front