Order: PHACOPIDA Salter, 1864
Suborder: PHACOPINA Struve, 1959
Superfamily: ACASTOIDEA Reijers, 1972
Family: ACASTIDAE Delo, 1935
Subfamily: ASTEROPYGINAE Delo, 1935
Genus MRAKIBINA Morzadec, 2011
Diagnosis
by Bignon and Crônier, 2014
Cephalon: Frontal lobe diamond shaped; axial furrows curved between S2 and S3; narrow palpebral lobe (tr.) allowing important development of lateral border; 7 lenses per dorsoventral file of visual surface; smooth occipital ring; genal spine longer than glabella; lateral border strongly developed on genal spine.
Pygidium: Fifteen pygidial axial rings without median tubercle; 5 pleural segments, rounded pleural bands; 5 pairs of pygidial spines mainly developed from posterior pleural bands, slightly longer than pleural width (tr.); terminal spine shorter than other pygidial spines.
Occurence
This genus is only known from the lower Eifelian of Morocco (Anti-Atlas).
Species
Mrakibina cattoi, Morzadec 2001 (Pragian)
References
Bignon, A., Crônier, C., 2014. The systematics and phylogeny of the Devonian subfamily Asteropyginae (Trilobita: Phacopida). Journal of Systematic Palaeontology 12, 637–668.