Order: PHACOPIDA Salter, 1864
Suborder: PHACOPINA Struve, 1959
Superfamily: ACASTOIDEA Reijers, 1972
Family: ACASTIDAE Delo, 1935
Subfamily: ASTEROPYGINAE Delo, 1935
Genus GANDLOPS Bignon and Crônier, 2014
Diagnosis
by Bignon and Crônier, 2014
Cephalon: Frontal lobe diamond shaped; axial furrows curved between S2 and S3; 6–10 lenses per dorsoventral file of visual surface; genal spine shorter than glabella; lateral border narrow and developed on genal spine.
Pygidium: Eight to 11 pygidial axial rings without median tubercle; 5 pleural segments with pleural furrows rather wide, rounded pleural bands; 5 very small and narrow pairs of pygidial spines mainly developed from posterior pleural bands, separated from each other; triangular terminal spine
as wide as axis and slightly longer than other pygidial spines.
Occurence
There are 4 species of Gandlops, but only G. tamnrhera occurs in Morocco. It is found in the upper Emsian. A list of all species can be found below.
Species
Gandlops brevispinosus Gandl, 1972 (upper Emsian – Spain)
Gandlops ogivalis Morzadec, 1976b (lower Emsian – France)
Gandlops palenciae Smeenk, 1983 (upper Emsian – Spain)
Gandlops tamnrherta Chatterton et al., 2006 (upper Emsian – Morocco)
References
Bignon, A., Crônier, C., 2014. The systematics and phylogeny of the Devonian subfamily Asteropyginae (Trilobita: Phacopida). Journal of Systematic Palaeontology 12, 637–668.