Trigonalidae
Trigonalidae (the spelling Trigonalyidae is incorrect under Article 29.5 of the ICZN,ICZN Code
29.5. Maintenance of current spellings. If a spelling of a family-group name was not formed in accordance with Article 29.3 but is in prevailing usage, that spelling is to be maintained, whether or not it is the original spelling and whether or not its derivation from the name of the type genus is in accordance with the grammatical procedures in Articles 29.3.1 and 29.3.2. also historically sometimes spelled Trigonaloidae, based on an unjustified emendation) is one of the more unusual families of n s, of ind ...
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Maimetshidae
Maimetshidae is an extinct family of wasps, known from the Cretaceous period.M. S. Engel. 2016A new genus and species of maimetshid wasps in Lebanese Early Cretaceous amber (Hymenoptera: Maimetshidae).''Novitates Paleoentomologicae'' 18:1-14 While originally considered relatives of Megalyridae, they are now considered to probably be close relatives of Trigonalidae. Subdivisions * Subfamily † Maimetshinae Rasnitsyn 1975 ** Tribe † Ahiromaimetshini Engel 2016 ***'' Ahiromaimetsha'' Perrichot et al. 2011 Lebanese amber, Early Cretaceous (Barremian) ***'' Turgonaliscus'' Engel 2016 Weald Clay, United Kingdom, Early Cretaceous (Barremian) ***'' Turgonalus'' Rasnitsyn 1990 Turga Formation, Zabaykalsky Krai, Russia, Early Cretaceous (Aptian) ** Tribe † Maimetshini Rasnitsyn 1975 ***'' Afrapia'' Rasnitsyn and Brothers 2009 Orapa, Botswana, Late Cretaceous (Turonian) ***'' Afromaimetsha'' Rasnitsyn and Brothers 2009 Orapa, Botswana, Late Cretaceous (Turonian) ***'' Ahstemiam'' McK ...
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Apocrita
Apocrita is a suborder of insects in the order Hymenoptera. It includes wasps, bees, and ants, and consists of many families. It contains the most advanced hymenopterans and is distinguished from Symphyta by the narrow "waist" ( petiole) formed between the first two segments of the actual abdomen; the first abdominal segment is fused to the thorax, and is called the propodeum. Therefore, it is general practice, when discussing the body of an apocritan in a technical sense, to refer to the mesosoma and metasoma (or gaster) rather than the "thorax" and "abdomen", respectively. The evolution of a constricted waist was an important adaption for the parasitoid lifestyle of the ancestral apocritan, allowing more maneuverability of the female's ovipositor. The ovipositor either extends freely or is retracted, and may be developed into a stinger for both defense and paralyzing prey. Larvae are legless and blind, and either feed inside a host (plant or animal) or in a nest cell provisio ...
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Taeniogonalos Gundlachii
''Taeniogonalos gundlachii'' is a species of hymenopteran in the family Trigonalidae Trigonalidae (the spelling Trigonalyidae is incorrect under Article 29.5 of the ICZN,ICZN Code
29.5. Maintena ...

Cenozoic
The Cenozoic ( ; ) is Earth's current geological era, representing the last 66million years of Earth's history. It is characterised by the dominance of mammals, birds and flowering plants, a cooling and drying climate, and the current configuration of continents. It is the latest of three geological eras since complex life evolved, preceded by the Mesozoic and Paleozoic. It started with the Cretaceous–Paleogene extinction event, when many species, including the non-avian dinosaurs, became extinct in an event attributed by most experts to the impact of a large asteroid or other celestial body, the Chicxulub impactor. The Cenozoic is also known as the Age of Mammals because the terrestrial animals that dominated both hemispheres were mammalsthe eutherians (placentals) in the northern hemisphere and the metatherians (marsupials, now mainly restricted to Australia) in the southern hemisphere. The extinction of many groups allowed mammals and birds to greatly diversify so that l ...
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