Emuella

rdf:langString Emuella

rdf:langString Pocock, 1970

rdf:langString late Botomian

rdf:langString

rdf:langString Emuella polymera of the Emuella genus; Lower Cambrian Emu Shale, Kangaroo Island, South Australia

rdf:langString * Emuella polymera (Pocock, 1970) * Emuella dalgarnoi (Pocock, 1970)

rdf:langString Species

rdf:langString Emuella

rdf:langString Emuella is a genus of trilobites of the family Emuellidae. Its fossils have been found in South Australia. It can be recognised by touching glabella and frontal border, and the sub-pentagonal head, as compared to, a short field between the front of the axis in the head or glabella and the border ridge, and a semi-circular headsheald in the sister-genus Balcoracania. Both emuellid genera share eye ridges that are positioned parallel to the frontal and lateral border of the head, prominent genal spines that are a smooth continuation of the lateral margin of the head, a prothorax of 6 segments, with the 5th and 6th merged and carrying large trailing spines. Both genera have in adulthood a highly variable but large number of segments of the opistothorax, although the largest number found in B. dailyi with 97 is much larger than in Emuella (52).