Table 2.

Table of all viruses mentioned in this review, their abbreviation, and the original reference where the virus is described.

Abbreviation	Virus Name	Reference
AFV1	Acidianus filamentous virus 1	Bettstetter et al., 2003 [41]
APBV1	Aeropyrum pernix bacilliform virus 1	Mochizuki et al., 2010 [42]
ATSV	Acidianus tailed spindle virus	Hochstein et al., 2015 [43]
ATV	Acidianus two-tailed virus	Prangishvili et al., 2006 [44]
HHTV-2	Haloarcula hispanica tailed virus 2	Atanasova et al., 2012 [45]
HSTV-1	Haloarcula sinaiiensis tailed virus 1	Atanasova et al., 2012 [45]
MetSV	Methanosarcina spherical virus	Weidenbach et al., [46]
MTIV	Metallosphaera turreted icosahedral virus	Wagner et al., 2017 [47]
ϕCh1	Natrialba magadii phi Ch1	Witte et al., 1997 [48]
PBCV-1	Paramecium bursaria chlorella virus 1	Reisser et al., 1988 [49]
PRD1	Phage PRD1	Olsen et al., 1974 [50]
SIRV1	Sulfolobus islandicus rod-shaped virus 1	Prangishvili et al., 1999 [51]
SIRV2	Sulfolobus islandicus rod-shaped virus 2	Prangishvili et al., 1999 [51]
SSV1	Sulfolobus spindle virus 1	Palm et al., 1991 [52]
STIV	Sulfolobus turreted icosahedral virus	Rice et al., 2004 [37]
TTV-1	Thermoproteus tenax virus 1	Janekovic et al., 1983 [53]