Enterobacteriales

'Enterobacteriales' with its type genus Escherichia is an order of gram-negative bacteria that was proposed in 2005. However, the name 'Enterobacteriales' was not validated, thus it lacks standing in nomenclature. For this reason the name should be written in parentheses as 'Enterobacteriales.' The order 'Enterobacteriales' includes only the family Enterobacteriaceae. Efforts are underway to validate the name Enterobacteriales so it will have standing in nomenclature. For a list of genera see Enterobacteriaceae.