Phacopida

Perirehaedulus richardsi

Order Phacopida / Suborder Cheirurina / Superfamily Cheiruroidea / Family Encrinuridae / Subfamily Coronocephalinae

Ludfordian (Ludlow, Silurian)Canadian Arctic

Perirehaedulus richardsi — photo 1 — Photo 1 · Holotype UA9016 (Canadian Arctic; Adrain et al., 1995) (Canadian Arctic; Adrain et al., 1995)

Perirehaedulus richardsi — photo 2 — Photo 2 · Holotype UA9016 (Canadian Arctic; Adrain et al., 1995) (Canadian Arctic; Adrain et al., 1995)

Classification

Order Phacopida / Suborder Cheirurina / Superfamily Cheiruroidea / Family Encrinuridae / Subfamily Coronocephalinae

Genus

Perirehaedulus Adrain & Edgecombe, 1995

Genus author

Adrain J. M. & Edgecombe G. D.

Genus etymology

perire, Latin, to be lost; haedulus, a little goat

Species

P. richardsi Adrain & Edgecombe, 1995

Species author

Adrain J. M. & Edgecombe G. D.

Species etymology

Keith Richards, British singer, producer, composer and guitarist of the Rolling Stones, famous in the music world

Age

Ludfordian (Ludlow, Silurian)

Distribution

Canadian Arctic

Diagnosis

Compared with the type species Perirehaedulus caprus, this species has a narrower anterior glabellar lobe, relatively longer and stouter anterior spines more closely spaced at the base, no longitudinal median furrow between the two spines, and more prominent eye stalks.