The Cardiobacteriaceae are a family of Pseudomonadota, given their own order. They are Gram-negative and rod-shaped, with diameters around 0.5 to 1.7μm and lengths from 1–6μm.[1]
↑George M. Garrity: Bergey's Manual of Systematic Bacteriology 2. Auflage. Springer, New York, 2005, Volume 2: The Proteobacteria, Part B: The Gammaproteobacteria
