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  2. List of animal classes - Wikipedia

    en.wikipedia.org/wiki/List_of_animal_classes

    The following is a list of the classes in each phylum of the kingdom Animalia. There are 107 classes of animals in 33 phyla in this list. However, different sources give different numbers of classes and phyla. For example, Protura, Diplura, and Collembola are often considered to be the three orders in the class Entognatha. This list should by ...

  3. Kingdom (biology) - Wikipedia

    en.wikipedia.org/wiki/Kingdom_(biology)

    Combined with the five-kingdom model, this created a six-kingdom model, where the kingdom Monera is replaced by the kingdoms Bacteria and Archaea. [16] This six-kingdom model is commonly used in recent US high school biology textbooks, but has received criticism for compromising the current scientific consensus. [ 13 ]

  4. Cavalier-Smith's system of classification - Wikipedia

    en.wikipedia.org/wiki/Cavalier-Smith's_system_of...

    [10] [11] The taxa "animal kingdom" (or kingdom Animalia) and "plant kingdom" (or kingdom Plantae) remain in use by some modern evolutionary biologists. The initial targets of Cavalier-Smith's classification, the protozoa were classified as members of the animal kingdom, [12] and many algae were regarded as part of the plant kingdom. With ...

  5. Parazoa - Wikipedia

    en.wikipedia.org/wiki/Parazoa

    Parazoa (Parazoa, gr. Παρα-, para, "next to", and ζωα, zoa, "animals") are a taxon with sub-kingdom category that is located at the base of the phylogenetic tree of the animal kingdom in opposition to the sub-kingdom Eumetazoa; they group together the most primitive forms, characterized by not having proper tissues or that, in any case, these tissues are only partially differentiated.

  6. Mollusca - Wikipedia

    en.wikipedia.org/wiki/Mollusca

    The diagram on the right summarizes a phylogeny presented in 2007 without the annelid worms. Because the relationships between the members of the family tree are uncertain, it is difficult to identify the features inherited from the last common ancestor of all molluscs. [ 62 ]

  7. Holozoa - Wikipedia

    en.wikipedia.org/wiki/Holozoa

    Holozoa (from Ancient Greek ὅλος (holos) 'whole' and ζῷον (zoion) 'animal') is a clade of organisms that includes animals and their closest single-celled relatives, but excludes fungi and all other organisms.

  8. Curculionidae - Wikipedia

    en.wikipedia.org/wiki/Curculionidae

    A true weevil. The Curculionidae are a family of weevils, commonly called snout beetles or true weevils.They are one of the largest animal families with 6,800 genera and 83,000 [1] species described worldwide.

  9. Kenyapithecus - Wikipedia

    en.wikipedia.org/wiki/Kenyapithecus

    Impressed by Kenyapithecus ' s modern-looking teeth, Leakey declared Kenyapithecus to be "a very early ancestor of man himself." [3]Kenyapithecus possessed craniodental adaptations for hard object feeding including thicker molar enamel, and a large mandible, large premolars and upper incisors that are similar to those seen in living pitheciine monkeys. [4]