extinct genus bulldog ants subfamily family described collected worker baltic amber species currently described characterised long slender bodies large size ants known late fossil specimens found europe suggested ants preferred live species assumed nesting species ants powerful subdue prey suggested living species species described belonged proposal widely accepted community instead scientists classify genera distinctive making valid genus discovery classification worker collected austrian fossil preserved baltic amber formally described journal article des designating type species condition taxonomic group having single taxon described newly established genus originally genus placed subfamily italian classified genus subfamily known year established subfamily tribe erected american placed year placed genus means decision british retain genus explanation return described new baltic fossil species named examining specimens new species stated newly described species belong genus genus treated tribe subfamily known prior original author described noted genus similar appearance heads identical different similar suggests intermediate classification short lived separated treated valid genus base fusion abdominal segment studies published year came conclusions subfamily later treated tribe treat tribe subfamily publications suggesting additional evidence favor interpretation opposed ward arguments described based worker late stage subsequent report described new fossil accepted classification comment views generic combination words derives greek word meaning saw greek word means following generated colleagues shows possible phylogenetic position ants subfamily note absent generated created species described description genus characterised large slender workers elongated narrow triangular shape long ants similar appearance distinguished shape powerful sting located abdomen species species late described switzerland based specimens preserved baltic amber russia species stage specimens preserved specimen number larger visible specimen number presumed worker type material includes worker donated named estimated body length millimetres long elongated head large oval shaped eyes present antennae long consist segments bent long curved quarters length total size head legs long slender unlike modern ants spurs instead high shape bell shaped long round sides divided segments body portions legs covered weakly curved hairs erect specimen brown colour black looks similar absent described based worker collected baltic amber original specimen collected lost estimated body length millimetres long thick large teeth unlike erect hairs hairs longer thicker legs body parts long curved head longer total width millimetres long millimetres wide legs long strong claws present abdomen described male commenting head short broad large eyes small far apart body dark brown colour wings somewhat yellowish described russian worker found germany stage million years ago specimen currently housed coined specific epithet surname named german estimated body length millimetres long head times longer total width eyes small oval shaped located upper head times long eyes nearly quarters length head differs apex lobe pointed instead round segment half length second segment discovery extinct ants found deposits suggests subfamily present europe late ecology colleagues suggested life habits extinct ants including similar extant ants subfamily ants ground possibly trees low vegetation ants collected plant species use food source workers recruited nest mates food sources lay trails ants solitary hunters workers relied vision hunt prey help navigate comments possibly nesting species means live soil trees instead assumed long legs strong claws long assumed equipped developed powerful sting likely kill prey preferred jungle habitat low elevations primitive body structure female known parasite ants
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