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Adeonella appears avicularia basal base BMNH border boss branch broad Broom Bryozoa Busk calcification Canu & Bassler capital characters chiefdoms closely collected dentary described Description Colony developed dicynodonts DIEGO directed distal distinct distribution dorsal edge elongate erect extending Family fauna Figure forms fragments frontal Frontal wall further genera genus grooves Harmer Hayward & Cook hexagonal Holotype included lateral length LIBRARY living lower jaw mandible marginal Material Stations SM means Measurements medially Museum Note O'Donoghue oral original oval Ovicell paired palatal palatine peristome Polyzoa pores posterior postorbital present Primary orifice prominent proximal referring region Remarks reported represented ridge rostrum rounded Ryland secondary separated short showing side similar single situated skull South African species spines spiramen surface Table teeth tusk type specimen typically UNIVERSITY ventral wide zooids х х х