"Genera only known from fossils";"Species only known from fossils" "Dacnusites Cockerell, 1921";"Apanteles concinnus Statz, 1938" "Eocardiochiles Brues, 1933";"Apanteles macrophthalmus Statz, 1938" "Palaeomicrogaster Belokobylskij, 2014";"Dacnusites reductus Cockerell, 1921" "Dacnusites sepultus Cockerell, 1921" "Eocardiochiles fritschii Brues, 1933" "Microplitis elegans Timon-David, 1944" "Microplitis primordialis (Brues, 1906)" "Microplitis vesperus Brues, 1910" "Semionis nixoni Tobias, 1987" "Semionis wightensis Belokobylskij, 2014" "Snellenius succinalis Brues, 1933" "Palaeomicrogaster oculatus Belokobylskij, 2014"