Fischerella thermalis McNeill et al. 2006 Hoffmann L. Castenholz R.W. Garrity G.M. Boone D.R. Castenholz R.W. Form-genus II. Fischerlla Gomont 1895 2001 1 2 593 595 Bergey's Manual of Systematic Bacteriology Springer New York note:cyanobacteria see also rid.9613