● Giebel J,Meier J,Binder A,Flossdorf J,Poveda JB,Schmidt R,Kirchhoff H (1991). Mycoplasma phocarhinis sp. nov. and Mycoplasma phocacerebrale sp. nov., two new species from harbor seals (Phoca vitulina L.). Int. J. Syst. Bacteriol.41, 39-44. ● Gupta RS,Sawnani S,Adeolu M,Alnajar S,Oren A (2018). Phylogenetic framework for the phylum Tenericutes based on genome sequence data: proposal for the creation of a new order Mycoplasmoidales ord. nov., containing two new families Mycoplasmoidaceae fam. nov. and Metamycoplasmataceae fam. nov. harbouring Eperythrozoon, Ureaplasma and five novel genera. Antonie Van Leeuwenhoek111, 1583-1630.