Phacopida

Psychopyge praestans

Order Phacopida / Suborder Phacopina / Superfamily Acastoidea / Family Acastidae / Subfamily Asteropyginae

Emsian (Early Devonian)Morocco
Psychopyge praestans — photo 1
Photo 1 · Compared with the type species: the cephalic protuberance is of nearly uniform width with a bifurcate front; the glabella bears spine-like nodes; the occipital spine is longer. Thoracic axial spines on segments 4 and 8. Pygidial axial spines on rings 1, 5, 9, 13 and 17; the marginal spines are more strongly curved, and the fourth pair of marginal spines is longer. Holotype (Morocco; Morzadec 2001) UA13372 (Morocco; Chatterton et al., 2006) Specimen UA13369 with the front of the cephalic protuberance missing (Morocco; Chatterton et al., 2006)
Psychopyge praestans — photo 2
Photo 2 · Compared with the type species: the cephalic protuberance is of nearly uniform width with a bifurcate front; the glabella bears spine-like nodes; the occipital spine is longer. Thoracic axial spines on segments 4 and 8. Pygidial axial spines on rings 1, 5, 9, 13 and 17; the marginal spines are more strongly curved, and the fourth pair of marginal spines is longer. Holotype (Morocco; Morzadec 2001) UA13372 (Morocco; Chatterton et al., 2006) Specimen UA13369 with the front of the cephalic protuberance missing (Morocco; Chatterton et al., 2006)
Psychopyge praestans — photo 3
Photo 3 · Compared with the type species: the cephalic protuberance is of nearly uniform width with a bifurcate front; the glabella bears spine-like nodes; the occipital spine is longer. Thoracic axial spines on segments 4 and 8. Pygidial axial spines on rings 1, 5, 9, 13 and 17; the marginal spines are more strongly curved, and the fourth pair of marginal spines is longer. Holotype (Morocco; Morzadec 2001) UA13372 (Morocco; Chatterton et al., 2006) Specimen UA13369 with the front of the cephalic protuberance missing (Morocco; Chatterton et al., 2006)
Classification
Order Phacopida / Suborder Phacopina / Superfamily Acastoidea / Family Acastidae / Subfamily Asteropyginae
Genus
Psychopyge Termier & Termier, 1950
Genus author
Termier G. & Termier H.
Genus etymology
psych-, Greek, spirit, mind; pyge, Greek, tail
Species
P. praestans Morzadec, 2001
Species author
Morzadec P.
Species etymology
praestans, excellent
Age
Emsian (Early Devonian)
Distribution
Morocco