"Orthoreovirus" is part of the family "Reoviridae". Coltivirus is in the family Reoviridae, which contains eight genera. It is caused by Rotavirus, a genus of double-stranded RNA virus in the family "Reoviridae". This class includes two major families, the Reoviridae and Birnaviridae. It is caused by a virus of the genus "Orbivirus" belonging to the family "Reoviridae". The "Reoviridae" have not been assigned to an order. It is a part of the family "Reoviridae", as well as the subfamily "Spinareovirinae". The Baltimore System of viral classification categorizes "Reoviridae" in Group III. The cytoplasmic polyhedrosis viruses (CPVs) form the genus Cypovirus of the family "Reoviridae". Orthoreovirus is a genus of viruses, in the family "Reoviridae", in the subfamily "Spinareovirinae". Aquareovirus is a genus of viruses, in the family "Reoviridae", in the subfamily "Spinareovirinae". Cardoreovirus is a genus of viruses, in the family "Reoviridae", in the subfamily "Sedoreovirinae". This virus contains a dsRNA genome and is a member of the "Reoviridae" family. Phytoreovirus is a genus of viruses, in the family Reoviridae, in the subfamily Sedoreovirinae. Viruses in the family Reoviridae have genomes consisting of segmented, double-stranded RNA (dsRNA).