Formicium

This name has been considered both an available name and a collective group name. This should be taken into consideration when using this name.

Distribution
This taxon is known from ; and.

Nomenclature

 * † FORMICIUM [†Formiciinae: collective group name]
 * †Formicium Westwood, 1854: 393.
 * †Formicium junior synonym of †Pseudosirex (family †Pseudosiricidae): Handlirsch, 1906: 577.
 * †Formicium revived from synonymy as genus of Formicidae: Cockerell, 1920: 279
 * [†Formicium incorrectly as senior synonym of †Pseudosirex: Hölldobler & Wilson, 1990: 17; incorrectly retained in †Pseudosiricidae: Abe & Smith, 1991: 34.]
 * †Formicium senior synonym of †Eoponera: Lutz, 1986: 182.
 * †Formicium senior synonym of †Megapterites: Lutz, 1990: 61.
 * †Formicium collective group name in †Formiciinae: Archibald, et al. 2011: 3681.
 * †EOPONERA [junior synonym of †Formicium]
 * †Eoponera Carpenter, 1929: 301. Type-species: †Eoponera berryi, by original designation.
 * †Eoponera junior synonym of †Formicium: Lutz, 1986: 189.
 * †MEGAPTERITES [junior synonym of †Formicium]
 * †Megapterites Cockerell, 1920: 278. Type-species: †Megapterites mirabilis, by monotypy.
 * †Megapterites junior synonym of †Formicium: Lutz, 1990: 61.