Incertae sedis (Latin for 'of uncertain placement') or problematica is a term used for a taxonomic group where its broader relationships are unknown or undefined. Alternatively, such groups are frequently referred to as "enigmatic taxa". In the system of open nomenclature, uncertainty at specific taxonomic levels is indicated by incertae familiae (of uncertain family), incerti …

The Clostridia are a highly polyphyletic class of Bacillota, including Clostridium and other similar genera. They are distinguished from the Bacilli by lacking aerobic respiration.They are obligate anaerobes and oxygen is toxic to them. Species of the class Clostridia are often but not always Gram-positive (see Halanaerobium) and have the ability to form spores.

Etymology. The English word fungus is directly adopted from the Latin fungus (mushroom), used in the writings of Horace and Pliny. This in turn is derived from the Greek word sphongos (σφόγγος 'sponge'), which refers to the macroscopic structures and morphology of mushrooms and molds; the root is also used in other languages, such as the German Schwamm ('sponge') …

Ants (family Formicidae in the order Hymenoptera) are the most species-rich of all social insects, with more than 12,000 described species and many others awaiting description. Formicidae is divided into 21 subfamilies, of which 17 are extant and four subfamilies are extinct, described from fossils.In total more than 300 genera have been described. Ants have come to occupy virtually …

Tineidae is a family of moths in the order Lepidoptera described by Pierre André Latreille in 1810. Collectively, they are known as fungus moths or tineid moths.The family contains considerably more than 3,000 species in more than 300 genera. Most of the tineid moths are small or medium-sized, with wings held roofwise over the body when at rest.

Incertae sedis (4 families) Familie Eomyiidae Rohdendorf, 1962 † (1 geslacht, 1 soort) Familie Nemestrinidae Griffith & Pidgeon, 1832 (26 geslachten, 300 soorten, 7/23/1) Familie Prosechamyiidae Blagoderov & Grimaldi, 2007 † (1 geslacht, 2 soorten) Familie Rhagionemestriidae Ussatchov, 1968 † (2 geslachten, 3 soorten) Superfamilie "zonder ...

Động vật là một nhóm sinh vật đa bào, nhân chuẩn, được phân loại là giới Động vật (Animalia, đồng nghĩa: Metazoa) trong hệ thống phân loại 5 giới.Cơ thể của chúng lớn lên khi phát triển. Hầu hết động vật có khả năng di chuyển một cách tự nhiên và độc lập.

Taxonomic list of fossil prehistoric birds. Higher-level taxa are presented in likely or suspected phylogenetic order. Genus-level taxa and lower are sorted chronologically, in ascending order (i.e., older taxa first).. The higher-level groups of non-Neornithes are arranged based on the phylogeny proposed by Luis Chiappe, updated and expanded to incorporate recent research.

Los paseriformes (Passeriformes) son un gran orden de aves que abarca más de la mitad de las especies de aves del mundo. Los paseriformes se conocen comúnmente como pájaros y a veces aves cantoras o pájaros cantores.Los pájaros son el grupo de vertebrados terrestres más diversificado, con más de cinco mil setecientas especies identificadas, [1] lo que …

Los peces del orden Siluriformes, comúnmente llamados peces gato, siluros o bagres comprenden 33 familias, unos 400 géneros y más de 3093 especies, 1200 de las cuales viven en América, donde también se los llama nicuros.Dos familias, los Arídos y los Plotósidos, son principalmente marinas, el resto viven en agua dulce.La mayor parte de los bagres son …