"Nicollea ruminantium" (Cowdry 1925) Macchiavello 1947 Dataset NCBI Taxonomy Classification phylum Pseudomonadota class Alphaproteobacteria order Rickettsiales family Anaplasmataceae genus Ehrlichia species Ehrlichia ruminantium Name Homonyms Nicollea ruminantium "Nicollea ruminantium" (Cowdry 1925) Macchiavello 1947