DescriptionAnaspida.png English: Anaspids are characterized by a large, tri-radiate spine (red) posteriorly to the series of branchial openings. Typical
Cephalaspidomorphans: B - Hemicyclaspis (Osteostraci), and C - Pterygolepis (Anaspida). A, B, and C are all ostracoderms (jawless, armored fish). D - Climatius
ii-viii, the remaining thoracic somites; 1-6, the abdominal somites Subject: Anaspida, Syncardia Tag: Invertebrates Date 1911 date QS:P571,+1911-00-00T00:00:00Z/9
,_a_living_representative_of_the_Syncarida.png){kind=link}